9:45: Nick Howson has our on the whistle match report here from Old Trafford. Thanks for reading and join us on Wednesday for Chelsea's visit to Paris Saint Germain and Real Madrid v Dortmund.
9:44: Despite all the pre-match dejection, United are still in their quarter final tie although the odds remain heavily stacked against them ahead of the daunting visit to the Allianz Arena. Atletico Madrid were only denied a first leg win in the Nou Camp by a goal from Neymar in the final 20 minutes, leaving us enthrallingly poised ahead of the return leg's next week.
Manchester United 1-1 Bayern Munich
Barcelona 1-1 Atletico Madrid
9:32: Schweinsteiger is gone! Rooney wins possession in his own area and advances but is caught by a late challenge from the midfielder. He's already booked and another is fair, he'll also miss the return leg.
SENT OFF - Bastian Schweinsteiger (Bayern Munich)
9:30: Javi Martinez is booked for hauling down Javier Hernandez who had turned him with ease! He didn't quite deny a goal scoring chance as Bayern had defenders getting back but it was very cynical to say the least. Martinez will miss the second leg.
9:29: United's makeshift defence is doing them well as Phil Jones at left back - perhaps the one position he hasn't played in for United before - does well to fend of Robben and wins a free kick for his side.
9:26: Danny Welbeck comes off for Javier Hernandez. He may have missed United's best chance of the first half but his contribution this evening has been first rate.
9:24: Mandzukic is shown a yellow card for catching Nemanja Vidic. We're inside the last 10 minutes here, can United hang onto a draw?
9:23: Robben finds Ribery's run through the centre of box with a sublime reverse pass and the Frenchman somehow knocks the ball through Ferdinand's legs across goal, but Mandzukic doesn't react quick enough and the ball rolls out for a goal kick.
9:21: Bayern go agonisingly close to finding a second. Gotze is found in the middle of the box with his back to goal but under pressure from Vidic he lets it slide to Robben, whose low effort fizzes past De Gea's right hand post.
9:18: Barcelona are level thanks to a moment of pure genius from Andres Iniesta. It's his inch perfect pass that takes four players out of the game en route to finding Neymar, who is well placed to sweep home an equaliser.
9:16: Buttner, who has had an excellent game, is coming off injured and is replaced by Ashley Young. Phil Jones moves to left back with Antonio Valencia switching to right back,
Goal! Barcelona 1-1 Atletico Madrid (Neymar)
9:14: Rooney manages to nick the ball away in the middle and poke a ball through on the right. It's overhit, but Valencia does well to knock the ball on but foolishly dives in Boetang on the follow up. Having already been booked, he's very lucky to still be on the pitch.
9:11: Buttner continues his sterling work dealing with Robben, seeing the ball out for a corner as his countryman looked to cut through him. Moments later the two are in a duel again, but this time Robeen opens his body up and attempts to curl one inside the far post that sails wide.
9:09: United's lead lasted just eight minutes as Bayern equalise with a brilliantly worked goal. Robben finds Rafinha on the overlap who crosses for Mandzukic, he nods back across where Schweinsteiger is bursting through at pace. Without breaking stride, he slams a wonderful half volley into the roof of the net.
Goal! Manchester United 1-1 Bayern Munich (Bastian Schweinsteiger, 67)
9:07: Bayern probe a good 35 yards from goal before the ball comes to Boetang, who strikes a powerful effort on goal that is comfortably handled by De Gea.
9:05: Pep reacts by taking off Thomas Muller and replacing him with Mario Mandzukic.
Nick Howson at Old Trafford
A first half foothold has become a second half lead as United hit the front in dramatic style courtesty of Nemanja Vidic's flicked header.
Bayern have failed to recapture their dominance of the first half and with Shinji Kagawa into the fore, the home side have a stranglehold on this first leg. Expect a German repost at some stage but for now the momentum is all with Moyes' men."
9:02: Atletico have silenced the Nou Camp! Iniesta is booked as he gives away a free kick 30 yards out from goal. Diego steps up to take it and sweeps a magnificent effort into the top right hand corner.
Goal! Barcelona 0-1 Atletico Madrid (Diego, 58)
9:00: United lead! Rooney swings in an excellent corner that Vidic leaps for and brilliantly directs past Neuer into the bottom corner!
Goal! Manchester United 1-0 Bayern Munich (Nemanja Vidic, 57)
8:59: United enjoying a decent spell of posession for perhaps the first time all game. Carrick sprays an excellent ball out to Valencia on the right who swings the ball goalward. It's curls back out as Rooney chases down the loose ball. Bayern have the ball back soon after but not for long as United win a corner.
8:56: Muller plays the ball in field to Robben who immediately looks to play a cute one two with Schweinstieger ahead of him in the box, but Ferdinand does excellently to spring across and intercept. Up the other end a Valencia cross finds Rooney but his header meekly rolls into Neuer's arms.
8:54: Rooney chases down a looping clearance that Neuer is coming to meet and the 'keeper confidently nods it over to his full back.
8:53: Bayern haven't dominated possession as noticably as they were in the second half but remain a threat. Robben this time breaks down left flank but his cross is thumped away by Vidic.
8:51: Shinji Kagawa chases down a hopeful ball with Boateng looking a little slow to chase it down, but it comes to nothing.
8:50: Rafinha curls an excellent pass into the path of Schweinsteiger has broke away just inside the right of the United box having peeled away from Carrick, but the United midfielder just about gets back to intercept.
8:48: And United get us started for the second half.
8:47: Shinji Kagawa on for Ryan Giggs, who has suffered a groin injury, in the second half. The Japanese playmaker scored and assisted one in his last appearance against Bayern in the 2013 German Cup final. A similar contribution tonight wouldn't go amiss this evening.
8:45: We are nicely poised for the second half here. You can't imagine the intensity of Bayern dissipating in the second half, but can United match it? You have to think another chance could fall their way in this half.
Barcelona v Atletico Madrid
Nick Howson at Old Trafford
It says much about Manchester United's performance tonight when Pep Guardiola, he of two European Cups, is stood hands on hips for much of the first half.
United haven't been swashbuckling in attack but they've been solid when required at the back, allowing possession, space but not chances to a Bayern side who have mustered one real effort on goal through Arjen Robben.
Toni Kroos has run the show for Bayern behind the midfield where Marouane Fellaini's performance must be considered the major negative for United, with the Belgian the primary source of support frustration.
Danny Welbeck should have score at both ends of the half but was first denied by the referee and then by the frame of Manuel Neuer but the reality is United have been far more competitive than any expected."
Manchester United 0-0 Bayern Munich
8:30: Giggs swings an excellent ball into Rooney who just inside the box and diverts it back across to Welbeck on the edge. He rides a challenge from Martinez and slides the ball over to Valencia who has crept inside the right channel, but his effort deflects for a corner. It comes to nothing and it's half time.
8:26: That was the best chance of the half from both sides. United try to repeat the trick as another ball is floated up to Welbeck but he is adjudged to have pushed his man out of the way as he leapt to win the ball.
8:24: What a chance for Welbeck! United break with Rooney who slides a ball in between Martinez and Boateng with Welbeck on the chase. Under pressure Boateng loses his footing and suddenly Welbeck is one on one with Neuer! He opts to scoop the ball over Neuer but the Bayern keeper gets a meaty hand to it to deny United. It's a poor effort really, even if the ball had evaded Neuer's hand there wasn't enough pace on it to have beaten Martinez who was tearing back to knock the ball off the line incase.
8:21: Bayern appeal for a penalty after Rafinhan thumps a shot off the arm of Buttner but it's waved away. The danger remains for United as Alaba finds space down the left and drags the ball across goal to Muller but Vidic brilliantly intercepts.
8:19: It's opening up slightly at Old Trafford! The ball is cut across to Rooney on the edge of the D but his low effort is blocked. Bayern immediately counter through Ribery who plays a brilliant reverse ball into the box towards Muller who is poised to shoot but, out of nowhere, Jones arrives to deny him at the last minute! Jones then immediately loses his footing with Ribery closing in, but Ferdinand manages to clean up and knock the ball back to De Gea to clear.
8:17: Diego comes on for the injured Diego Costa.
BREAKING - United have a shot. Danny Welbeck suddenly has the ball on the edge of the area in a similar position as Robben was moments ago, but it's easily gathered by Neuer.
8:16: De Gea denies Robben! The Dutchman drives in from the right with Carrick not doing enough, or isn't able to do enough, so slow him down. he whips a dipping effort on goal but the outstretched hand of De Gea bats it out for a corner.
8:14: Bad news for Atletico Madrid. They've managed to hold off Barcelona so far but the injury that threatened to rule out Diego Costa looks to have ended his game after half an hour as he attempted to holf off Diego Costa.
8:12: A rare moment in tonight's game as a searching United pass isn't pounced upon by a Bayern shirt. The ball is driven into the box with Danny Welbeck racing to get on to it. He has the option to hit it first time across goal from a tight angle but instead he tries to cutely clip the ball over Javi Martinez. It doesn't work and the (half)chance is gone.
8:09: Ribery effortlessly slips past Jones on the left and gives Fellaini the eyes as he passes into the path of the overlapping Alaba. The Austrian pings a ball across the face of goal but there's far too much on it for Thomas Muller to do anything about it.
8:07: United aren't touching the ball much, but they are holding their shape well, however. A ball lifted towards Robben inside the United box nearly disrupts that though as Vidic loses his footing, but it manages to slip away from the Bayern man too.
8:05: A moment of relief as Wayne Rooney is pushed over in his own half to win a free kick. The home side have possession for about 15 seconds before a ball directed towards Ryan Giggs is intercepted by Rafinha coming infield from the right. Absolutely relentless from Bayern so far.
8:02: Injury concern for Barcelona as Gerard Pique hobbles off injured and is replaced by Marc Barta.
Nick Howson at Old Trafford
The beast within Manchester United might have diminished this season but the opening 15 minutes against Bayern Munich has shown it is ready to reawaken.
Bayern look typically slick in possession but Antonio Valencia and Danny Welbeck's intensity is troubling the Germans' back-four. Pep Guardiola has already reacted to Welbeck's impressive start with a ferocious touch-line rant."
8:00: Antonio Valencia is shown a yellow card for a late slide in on Lahm. Bayern comfortably dominating possession now.
7:57: Robben and Ribery again combine effortlessly but United manage to clear for a corner. It's whipped in by Kroos but Ferdinand clears. Another corner is swung in and the ball momentarily bobbles between despairing United defenders before Wayne Rooney hoofs clear.
7:55: United living dangerously as Ribery glides past Carrick through the middle before finding Robben on the right. The Dutchman returns it to Ribery who ahs emerged on the byline and he dinks it across goal where Muller is waiting but United, unconvincingly, clear the danger.
7:53: It';s been a vibrant start from both side here. Welbeck brilliantly nutmegs Alaba with a cute drag back but is felled as his carries the ball on. No free kick though, as Bayern build from the back again. Minutes later Kroos tries to lift cute ball over the top but it's half cleared into the path of Robben, who cuts inside and sends a dipping shot wide of De Gea's bar.
7:51: Shaky start from Barcelona as Pinto, standing in for the injured Valdes, miss-kicks straight into the path of David Villa, but the former Barca man drills it wide!
7:49: Welbeck lashes home a brilliant effort! But it won't count, the whistle has blown for a high foot. Welbeck did excellently to find space in the box from Valencia's ball but his boot was just too high as he clipped the ball over Martinez before lashing the ball past Neuer with the outside of his boot.
7:47: Bayern predictably take control of possession in the opening minutes and Robben looks to get in behind Vidic on the inside right channel but his clipped ball back across goal is snuffed out and Buttner eventually clears.
7:45: And Bayern get us started at Old Trafford.
7:40: Here's a quick reminder of those teams as we approach kick off.
Man Utd: De Gea, Jones, Ferdinand, Vidic, Buttner, Valencia, Carrick, Fellaini, Giggs, Rooney, Welbeck
Subs: Lindegaard, Hernandez, Nani, Young, Fletcher, Kagawa, Januzaj.
Bayern Munich: Neuer, Rafinha, Javi Martinez, Boateng, Alaba, Robben, Lahm, Schweinsteiger, Ribery, Kroos, Muller
Subs: Starke, Van Buyten, Mandzukic, Shaqiri, Pizarro, Gotze, Hojbjerg.
Barcelona: Pinto, Dani Alves, Jordi Alba, Pique, Mascherano, Xavi, Busquets, Fabregas, Iniesta, Messi, Neymar
Subs: Oier, Pedro, Alexis, Bartra, Song, Adriano, Sergi Roberto.
Atletico Madrid: Courtois, Juanfran, Godin, Miranda, Filipe Luis, Turan, Gabi, Tiago, Koke, Villa, Diego Costa
Subs: Aranzubia, Mario Suarez, Rodriguez, Alderweireld, Diego, Insua, Sosa.
7:34: We are just about ten minutes from kick in both our games this evening. Everywhere you look there are duels strongly in Bayern's favour at Old Trafford this evening. Arjen Robben v Alexander Buttner. Bastian Schweinsteiger v Marouane Fellaini. Rio Ferdinand v Thomas Muller. But could United maybe have a bit of luck in Wayne Rooney v Javi Martinez?
Nick Howson at Old Trafford
The atmosphere at Old Trafford couldn't be more different from the round of 16 against Olympiakos. For one, the pressure on David Moyes' Manchester United to produce a result is substantially reduced, while the expectations of their visitors is in stark contrast also.
Bayern have unsurprisingly sold out their allocation at the Theatre of Dreams and are making a racket at the far end prior to kick-off. After disposing of Arsenal in the last round, they are big favourites to continue their dominance over the Premier League's elite.
Reaching the quarter finals might have earned Moyes a stay of execution at United, but successive defeats to Liverpool and Manchester City, with inadequate performances accompanying both results, means the scrutiny has again been ratcheted up on the Scot and these two games represent anything but a free pass."
TEAM NEWS: Diego Costa is fit to start tonight but the bigger surprise comes in the inclusion of David Villa, who partners the adopted Spaniard up front.
Barcelona: Pinto, Dani Alves, Jordi Alba, Pique, Mascherano, Xavi, Busquets, Fabregas, Iniesta, Messi, Neymar. Subs: Oier, Pedro, Alexis, Bartra, Song, Adriano, Sergi Roberto.
Atletico Madrid: Courtois, Juanfran, Godin, Miranda, Filipe Luis, Turan, Gabi, Tiago, Koke, Villa, Diego Costa. Subs: Aranzubia, Mario Suarez, Rodriguez, Alderweireld, Diego, Insua, Sosa.
TEAM NEWS: Rafael da Silva has not recovered in time after suffering a thigh injury on the weekend. Phil Jones moves across to right back as Rio Ferdinand and Nemanja Vidic resume their partnership at centre half. Fellaini and Carrick marshall United's midfield with Ryan Giggs occupying the space between them and Wayne Rooney, who leads the United line.
It's predictably fearsome from Bayern. With both Dante and Thiago Alcantara unavailable Javi Martinez partners Boateng at centre half behind a formidably midfielder of Bastian Schweinsteiger and Philipp Lahm.
Nick Howson at Old Trafford
After a weekend dominated by banners in the sky above Old Trafford ahead of this Champions League last eight first leg against Bayern Munich, the clearest message as to the task facing Manchester United is in tonight's two teams.
Of Bayern's 18-man squad, 16 of them have European Cup winners' medals from last May including their entire starting eleven. The suspended Dante and the injured Thiago Alcantara are their most significant absentees while match-winner from Wembley Arjen Robben leads the attack.
Up against the Dutchman, United hand a second ever Champions League start to Alexander Buttner at left-back while Phil Jones replaces the injured Rafael. Wayne Rooney leads the attack behind Danny Welbeck."
United starting XI: De Gea, Jones, Ferdinand, Vidic, Büttner, Valencia, Carrick, Fellaini, Giggs, Rooney, Welbeck
Bayern starting XI: Neuer; Rafinha, Boateng, Martinez, Alaba; Robben, Lahm, Schweinsteiger, Kroos, Muller, Ribery
6:51: It's not just about United and Bayern this evening. Spain's top two meet in our other quarter final at the Nou Camp. This is one of three duels between the two clubs before the season ends with another meeting awaiting them on the final day of the season in a game which could very well determine who lifts the La Liga trophy.
6:48: In his programme notes ahead of tonight's game, David Moyes wrote:
These are the nights that Manchester United are all about and have been for many years.
They are what Sir Matt Busby had in mind when he first took United into Europe, with two huge clubs going head-to-head.
Over two legs we believe we can progress, but none of us are under any illusions as to how big a task awaits."
6:46: When the draw for the last eight was made you couldn't have paired two sides at further ends of the footballing spectrum. Pep Guardiola's side enter tonight's game having been crowned Bundesliga champions with seven games remaining, boasting a form record that grows more fearsome by the week. They are being tipped to be the first side to retain the Champions League and with very good reason.
Meanwhile, David Moyes has picked up his share of records this season too, although a record number of league losses (10) and a record number of home losses (6) in the Premier League era crowned by record low points tally makes for quite different viewing.
Both clubs underwent significant upheaval over the summer, but only one has come out shining.
6:45: Good evening and welcome to IB Times UK's LIVE coverage of Tuesday's Champions League quarter-final action.