Bayern Munich 5-1 Arsenal, Chelsea 2-1 Dynamo Kiev: Uefa Champions League - As it happened

Only time will tell how important Willian's late winner will be for Chelsea given that it came in a match they were expected to win despite a desperate recent run of form, but it feels like a hugely significant moment in regards to Mourinho's immediate future. Had his team been beaten for the fourth successive fixture or even held tonight, his grip on power at Stamford Bridge would surely have been loosened that little bit further.

That is all we have time for tonight. Thanks for joining us and stay tuned to IBTimes UK for the latest post-match reaction.

A chastening night for Arsenal in Munich and hardly ideal preparation for the latest instalment of the north London derby against rivals Tottenham at the Emirates Stadium on Sunday.

Wenger's side were distinctly unimpressive in defence and gave themselves a mountain to climb by conceding so early on. Giroud's consolation goal was an excellent finish, but it matters preciously little in the context of such a disappointing result that, coupled with Olympiacos' late win against Dinamo Zagreb, leaves them third in Group F and six points adrift of second place.

Qualification for the first knockout stage is not totally out of the question, but it looks like a difficult task now. A place in the Europa League could beckon for the Gunners.

Full-time

Group E: Barcelona 3-0 BATE Borisov, Roma 3-2 Bayer Leverkusen

Group F: Bayern Munich 5-1 Arsenal, Olympiacos 2-1 Dinamo Zagreb

Group G: Chelsea 2-1 Dynamo Kiev, Maccabi Tel Aviv 1-3 Porto

Group H: Gent 1-0 Valencia, Lyon 0-2 Zenit Saint Petersburg

A woeful evening for Arsenal in Europe is compounded by a late winner for Olympiacos at the Karaiskakis Stadium. Marco Silva's side earlier trailed by a goal to nil against Dinamo Zagreb.

Goal: Olympiacos 2-1 Dinamo Zagreb (Felipe Pardo)

Goal: Barcelona 3-0 BATE Borisov (Neymar)

Late drama at Stamford Bridge as Chelsea re-take the lead through an excellent Willian free-kick that was initially won by substitute Hazard. The Brazilian is such a menace from set-pieces.

In Bavaria, Muller adds insult to injury by slotting home his second of the night with a cool low finish.

Goal: Bayern Munich 5-1 Arsenal (Thomas Muller)

Goal: Chelsea 2-1 Dynamo Kiev (Willian)

Goal: Roma 3-2 Bayer Leverkusen (Miralem Pjanic)

How on earth is it not 5-1? Robben is sent through clear on goal by Thiago, before successfully rounding Cech. He then hesitates to pull the trigger and is thwarted by an excellent, last-ditch sliding challenge from the covering Debuchy.

Robben appeals vociferously for a penalty due to the strength and angle of the tackle, but the referee deems that Debuchy won the ball fairly.

Wenger then uses his remaining two substitutes two introduce young Iwobi and Calum Chambers at the expense of Giroud and Cazorla.

A cruel second-half blow for Chelsea as Dragovic atones for his earlier own goal by pouncing to equalise after Begovic missed a punch and Matic failed to clear with a header. With 13 minutes left to play, Mourinho throws on Hazard and Pedro in search of an important winner.

Arsenal survive a brief penalty scare as Vidal's header is blocked by the hand of Mertesacker.

Goal: Chelsea 1-1 Dynamo Kiev (Aleksandar Dragovic)

A golden opportunity for Arsenal to reduce the deficit further is spurned. Superb play from Coquelin to beat his man and provide a perfect low cross for Cazorla, but the latter gets his shot horribly wrong and it balloons high over the bar. It's not been his night.

Goal: Maccabi Tel Aviv 1-3 Porto (Eran Zahavi)

Goal: Maccabi Tel Aviv 0-3 Porto (Miguel Layun)

Cech is forced into action once more as Robben, famous for his virtually unstoppable habit of cutting inside onto his left foot, instead opts to go outside and hits a low shot that is parried wide.

Giroud then spots Neuer off his line and tries an audacious lob from incredibly far out but the execution is not quite up to scratch.

A crumb of comfort for Arsenal as Giroud gets in between the Bayern defence before chesting down Alexis' cross and acrobatically rifling the ball into the back of the net. Superb finish from the Frenchman.

Goal: Bayern Munich 4-1 Arsenal (Olivier Giroud)

A second change for Bayern as Medhi Benatia replaces fellow centre-back Jerome Boateng. Vidal also replaces Lewandowski.

Goal: Barcelona 2-0 BATE Borisov (Luis Suarez)

More bad news for Arsenal as Olympiacos rifle home an equaliser through Colombian winger Pardo.

Goal: Olympiacos 1-1 Dinamo Zagreb (Felipe Pardo)

There have been one or two further signs of life from Arsenal in the last few minutes, but Monreal and Giroud are unable to fashion any meaningful chances.

Nick Howson at Stamford Bridge

Finally some life from Dynamo Kiev and they are praying on Chelsea nerves at the start of this second half. Little in the way of clear cut chance, though substitute Junior Moraes was denied by Begovic, but there is enough quality it seem to keep the hosts honest. Willian, who has probably been Chelsea's best player, is among those looking to take advantage on the break

Goal: Lyon 0-2 Zenit Saint Petersburg (Artem Dzyuba)

Goal: Maccabi Tel Aviv 0-2 Porto (Andre Andre)

Goal: Roma 2-2 Bayer Leverkusen (Javier Hernandez)

Arsenal have been humiliated so far tonight, but they almost grab a consolation as Cazorla plays a nifty one-two with Giroud only for Neuer to save his goalbound effort.

Kieran Gibbs is on to replace Campbell.

Just 38 seconds after replacing Coman, Robben extends Bayern's lead even further. Alaba provides a helpful overlap for Costa and the experienced Dutch winger sweeps the ball into the roof of the net with his very first touch. So, so easy.

Goal: Bayern Munich 4-0 Arsenal (Arjen Robben)

More trickery from Costa as he demonstrates his penchant for multiple stepovers. Cazorla is bamboozled, but Francis Coquelin less so as he comes across to block the shot.

Goal: Gent 1-0 Valencia (Sven Kums)

Goal: Roma 2-1 Bayer Leverkusen (Admir Mehmedi)

Bayern straight back in the ascendancy as Xabi Alonso's shot is blocked. The pressure Guardiola's team are exhibiting without the ball is just relentless, even with a seemingly insurmountable 3-0 lead to their name.

The teams have re-emerged from the Allianz Arena tunnel and Italian referee Gianluca Rocchi gets proceedings back underway. Can Arsenal offer anything by way of a comeback or are they simply destined to become the latest visiting team to be emphatically torn apart by Bayern?

Nick Howson at Stamford Bridge

After bemoaning his side's luck with referees, it is apt that Chelsea lead through a timely slice of good fortune as new life is breathed into Jose Mourinho's tenure in charge. Aleksandar Dragovic's own goal was as avoidable as it was calamitous, getting his positioning in all sorts of bother before heading past Olekandr Shovhovskiy.

Chelsea have been otherwise bright and goalkeeper Asmir Begovic a spectator but Mourinho will be keen to see victory secured with a bit to spare. Dynamo have offered nothing in the final third meanwhile

A disastrous first-half from Arsenal, who look totally powerless to resist Bayern's superior attacking threat. They will be praying at this stage that Guardiola's side are content to ease their foot off the gas somewhat and conserve their energy after the break or this could get even uglier, very quickly.

Dinamo Zagreb's slender lead at Olympiacos is the only positive at the moment for Wenger and co, although they won't be giving that a moment's thought just now.

Half-time

Group E: Barcelona 1-0 BATE Borisov, Roma 2-0 Bayer Leverkusen

Group F: Bayern Munich 3-0 Arsenal, Olympiacos 0-1 Dinamo Zagreb

Group G: Chelsea 1-0 Dynamo Kiev, Maccabi Tel Aviv 0-1 Porto

Group H: Gent 0-0 Valencia, Lyon 0-1 Zenit Saint Petersburg

Game over as the utterly anonymous Santi Cazorla is caught in possession in a dangerous area by Alaba, who perfectly epitomises Guardiola's relentless pressing approach.

He then steps inside the retreating Gabriel and bends a lovely, left-footed strike past Cech. Nothing the goalkeeper could do this time.

Goal: Bayern Munich 3-0 Arsenal (David Alaba)

This is beginning to resemble something of a training match for Bayern as Cech comes to the rescue for Arsenal once more. Lewandowski's cross towards the head of Muller is temporarily thwarted by Mertesacker, but his German international teammate powers the rebound on target and sees the ball tipped over the crossbar.

Bayern continue to pose a real threat. This time it comes down the right-hand side, where Lahm is once again permitted to maraud forward unchecked. He feeds Muller, whose low shot lacks power and is saved by Cech.

A slice of good fortune for Chelsea as centre-back Dragovic deflects Willian's cross beyond goalkeeper Oleksandr Shovkovskiy and into his own net.

Goal: Chelsea 1-0 Dynamo Kiev (Aleksandar Dragovic OG)

Goal: Roma 2-0 Bayer Leverkusen (Edin Dzeko)

Coman is giving Debuchy twisted blood down that left-hand flank here and Arsenal are fortunate that the score remains at 2-0. It's been a hugely difficult first half defensively for the Gunners.

Barcelona have already lost another midfielder in Ivan Rakitic to injury tonight, but they take the lead through a Neymar penalty after Filip Mladenovic fouls Munir El Haddadi.

Goal: Barcelona 1-0 BATE Borisov (Neymar)

A difficult task for Arsenal now borders on the impossible as Bayern double their advantage. A deep cross from Lahm is mishit by Coman, but the ball drops kindly in the box for Muller who drives home via a deflection off Mertesacker.

Cech then has to be alert straight from kick-off to deny Lewandowski and an inviting cross from Costa has just whistled agonisingly wide of the post.

Goal: Bayern Munich 2-0 Arsenal (Thomas Muller)

Goal: Lyon 0-1 Zenit Saint Petersburg (Artem Dzyuba)

Arsenal get a rare sight of goal as Campbell attempts to hook a deep cross back towards Giroud but Bayern easily clear their lines.

That Zagreb goal is actually rather good news for Arsenal, as a loss for Olympiacos in Greece tonight will make the group far more compact behind Bayern.

Campbell becomes the first player to be yellow carded for a blatant trip on Coman.

Goal: Olympiacos 0-1 Dinamo Zagreb (Armin Hodzic)

Goal: Maccabi Tel Aviv 0-1 Porto (Cristian Tello)

The hosts break forward again as skipper Philipp Lahm gets to the byline but his low ball towards Muller is just about cleared. Debuchy and Monreal then have to be alert to cut out respective crosses from Coman and Costa.

Bayern have responded to that near-miss in impressive fashion. The lively Coman was inches away from connecting with a long ball forward after cutting inside Debuchy, while Cech has twice been forced to deny Lewandowski in a matter of moments.

His first effort was a fiercely struck shot from distance that was pushed wide and his second a clever header from the resulting corner.

Nick Howson at Stamford Bridge

It says plenty about European football's current landscape that it took the playing of Uefa's Champions League anthem - which was mildly booed by the Chelsea support - to spark the home crowd into action.

Jose Mourinho has been stood for the entire first quarter of an hour and his side have launched a response of sorts. Oscar has been impressive but Dynamo look resolute early on

A real open, attacking start to this game as Arsenal are denied an immediate equaliser. Monreal plays a hard cross towards Ozil in the six-yard box and the German midfielder steers the ball home only to receive a yellow card for handball. Replays show it appeared to hit his shoulder, so Wenger may feel aggrieved.

A dismal start from Arsenal as they fall behind inside 10 minutes. With Campbell and Monreal blocking off Coman's path down the left, he feeds the ball to Thiago in the middle. The Spaniard then proceeds to scoop a lofted cross into the box and Lewandowski peels off the back of Gabriel to cushion a header beyond the helpless Cech.

Incorrect shouts for an offside flag fall on deaf ears.

Goal: Bayern Munich 1-0 Arsenal (Robert Lewandowski)

As you might expect, Bayern are dominating possession early on here and Costa is next to try his luck with a long-range effort that fails to land on target.

Two ex-Premier League players in Edin Dzeko and Salah have combined to give Serie A title hopefuls Roma a very early lead over Bayer Leverkusen.

At the Allianz Arena, a dipping shot from Alaba is comfortably held by Cech.

Goal: Roma 1-0 Bayer Leverkusen (Mohamed Salah)

Bayern's midfield will no doubt be as fluid as ever, but it looks as if Costa is looking to play more centrally in support of Lewandowski with Kingsley Coman playing wide on the left and Muller stationed out right.

An early sighter from Giroud flies wide of Manuel Neuer's right-hand post as Ozil and Nacho Monreal combine to good effect.

We are now underway across Europe.

Nick Howson at Stamford Bridge

I wouldn't say the travelling support from Kiev are exactly in fine voice but they would have good reason to be. Only goal difference separates them from the summit of the Ukrainian Premier League while they have kept a clean sheet in 14 of their 19 games this season.

They start this game above Chelsea in the group plus they bring with them a familiar face in the form of manager Sergei Rebrov - formerly of Tottenham and West Ham of course

Arjen Robben being left on the bench by Guardiola could be a positive for Arsenal, although this talented Bayern team are hardly short on attacking threats. Thomas Muller is recalled to the starting XI, along with David Alaba and Thiago Alcantara.

Rafinha and Arturo Vidal also drop out.

Although Koscielny will be a big loss for Arsenal, Gabriel has generally proved himself a capable deputy since joining from Villarreal in January. Perhaps a bigger worry in that backline will be Mertesacker going up against one of Europe's most in-form marksmen in Robert Lewandowski and Debuchy attempting to nullify the tricky Douglas Costa.

Campbell will be tasked with helping out his full-back in a defensive capacity at every available opportunity. All eyes will be fixed upon the Costa Rica international to see if he can once again justify a starting berth after his first goal for the club last weekend.

Here is confirmation from Arsenal regarding that injury to Koscielny:

Just to reiterate that all of tonight's eight Champions League matches are due to commence at 19:45 GMT, so we are now just under 25 minutes away from kick-off.

More from IBTimes UK sports editor Nick Howson now on Chelsea's team selection tonight as they look to avoid a third successive defeat in all competitions...

When the group stage draw was made back in August, few could have predicted that Chelsea's fourth group match would have so much riding on it. Jose Mourinho might be bullish about his future but the reality is defeat tonight and then to Stoke City in the Premier League this weekend is likely to spell the end of his second tenure in west London.

Amid all the talk of internal issues, it is interesting that while Cesc Fabregas returns, Eden Hazard drops out. The Belgian has been hopelessly out of sorts this season, performances that have swelled speculation that Real Madrid are ready to pounce

Tuesday 3 November was also a busy night of European action, with Manchester City turning on the attacking style to secure their place in the last 16 thanks to a convincing 3-1 win away at Sevilla and underwhelming neighbours United labouring to a 1-0 victory over CSKA Moscow at Old Trafford courtesy of Wayne Rooney's second-half header.

Here is a full round-up of last night's results:

Group A: Real Madrid 1-0 Paris Saint-Germain, Shakhtar Donetsk 4-0 Malmo

Group B: Manchester United 1-0 CSKA Moscow, PSV Eindhoven 2-0 Wolfsburg

Group C: FC Astana 0-0 Atletico Madrid, Benfica 2-1 Galatasaray

Group D: Borussia Monchengladbach 1-1 Juventus, Sevilla 1-3 Manchester City

There are eight Champions League fixtures in total taking place tonight. Here is a quick reminder of the teams in action across the continent:

Group E: Barcelona v BATE Borisov, Roma v Bayer Leverkusen

Group F: Bayern Munich v Arsenal, Olympiacos v Dinamo Zagreb

Group G: Chelsea v Dynamo Kiev, Maccabi Tel Aviv v Porto

Group H: Gent v Valencia, Lyon v Zenit Saint Petersburg

Dynamo Kiev: Shovkovskiy, Vida, Khacheridi, Dragovic, Antunes, Sydorchuk, Rybalka, Yarmolenko, Buyalskiy, Gonzalez, Kravets

Subs: Rybka, Miguel Veloso, Petrovic, Morozyuk, Junior Moraes, Garmash, Gusev

As for Arsenal, Hector Bellerin is replaced by Mathieu Debuchy after sustaining a groin injury at Swansea. In another defensive change, Koscielny is dropped to the bench due to what the club are describing as a precaution for a "minor hip problem". Gabriel partners Per Mertesacker at centre-back.

Alex Oxlade-Chamberlain and Theo Walcott are both still missing after suffering hamstring and calf issues respectively on a torrid night at Sheffield Wednesday, while Aaron Ramsey, Jack Wilshere, Danny Welbeck, Tomas Rosicky and Mikel Arteta are all still sidelined.

Youngsters Jeff Reine-Adelaide and Alex Iwobi are among Wenger's substitutes tonight.

Arsenal: Cech, Debuchy, Mertesacker, Gabriel, Monreal, Coquelin, Cazorla, Campbell, Ozil, Alexis, Giroud

Subs: Macey, Chambers, Koscielny, Gibbs, Flamini, Iwobi, Reine-Adelaide

Nick Howson at Stamford Bridge

Another game and another different starting eleven for Chelsea as Jose Mourinho tinkers again in an attempt to strike on the elusive winning formula. Cesc Fabregas, after being accused to leading a dressing room revolt, starts in midfield alongside Nemanja Matic after they missed out against Liverpool.

Gary Cahill drops out alongside Eden Hazard, both of whom have named on the bench. Summer signing Pedro returns to the bench too after several weeks out with unspecific injury

So, Mourinho has elected to confine Eden Hazard to the substitutes' bench tonight as Cesc Fabregas returns to the starting XI. Also dropped from the side that lost 3-1 to Liverpool last time out is Gary Cahill, with Kurt Zouma shifting inside to partner captain John Terry in the heart of defence and Baba Rahman handed a start at left-back.

Nemanja Matic also returns after he was suspended from domestic duty for that red card received during the defeat to West Ham, replacing John Obi Mikel who is out of the matchday squad altogether. Pedro is back in contention after he returned to training this week although Branislav Ivanovic is not yet ready to make his comeback from a hamstring injury suffered on international duty for Serbia.

Striker Radamel Falcao is absent due to a muscle problem.

Chelsea: Begovic, Azpilicueta, Zouma, Terry, Baba Rahman, Ramires, Matic, Willian, Fabregas, Oscar, Diego Costa

Subs: Blackman, Cahill, Loftus-Cheek, Kenedy, Hazard, Pedro, Remy

We will have breaking news of Arsenal's team selection as well as Wenger's confirmed lineup for you shortly. In the meantime, the Gunners are not the only English side in action tonight as troubled Chelsea look to ease the pressure on an increasingly rattled Jose Mourinho as they host Ukrainian champions Dynamo Kiev.

IBTimes UK sports editor Nick Howson will keep you up to date with all the latest events on a critical night at Stamford Bridge...

The Champions League has so often contributed to the downfall of Chelsea mangers past and present, and will tonight signal the end for another? The likes of Andre Villas-Boas, Carlo Ancelotti, Roberto di Matteo and even Jose Mourinho have all been ruthlessly outsted following failures in Europe's premier club competition, and with the team's Premier League title defence in tatters Europe remains the only remaining avenue to success.

Outside of the top two after three games, tonight is a critical game against a Dynamo Kiev side who have a hopeless record on English shores, but nevertheless are above Mourinho's side in the group

A rather encouraging stat for Arsenal supporters who believe their side are capable of completing an unlikely double over the mighty Bayern tonight...

Bayern Munich: Neuer, Lahm, Martinez, Boateng, Alaba, Alonso, Thiago, Coman, Muller, Costa, Lewandowski

Subs: Ulreich, Benatia, Robben, Rafinha, Vidal, Badstuber, Kimmich

They could not do it twice in succession, could they? Arsenal face a formidable trip to Bavaria tonight to pit their wits once more against Pep Guardiola's Bayern Munich side that fell to a late 2-0 in their last Champions League outing in north London courtesy of second-half efforts from Olivier Giroud and Mesut Ozil.

Such a win breathed life back into the Gunners' latest European campaign after frankly dismal back-to-back defeats to Olympiacos and Dinamo Zagreb appeared to cut them adrift at the foot of Group F.

While that victory may give them a slight psychological edge ahead of kick-off at the Allianz Arena, it is important to note that reigning Bundesliga champions Bayern have won 15 of their 17 matches in all competitions so far this season and plundered 48 goals in the process. They did, however, drop their first league points of the 2015/16 campaign so far with a goalless draw against Eintracht Frankfurt last weekend.

Arsenal, meanwhile, have won five of their last six games and a woeful 3-0 Capital One Cup fourth round defeat suffered away at Championship promotion hopefuls Sheffield Wednesday last week is the only blot on their copybook since late September. Giroud, Laurent Koscielny and the lesser-spotted Joel Campbell were all on target in a resounding 3-0 win at Swansea last time out.