Full-time: Atletico Madrid 1-2 Chelsea
- Chelsea top Group C after following up big win over FK Qarabag with a stunning last-gasp victory on the first European night at Atletico's new Wanda Metropolitano stadium
- Substitute Michy Batshuayi sweeps home Marcos Alonso's pull-back with the last kick of second-half stoppage time
- Alvaro Morata restores parity on the hour-mark by glancing home the impressive Eden Hazard's excellent left-wing cross
- Antoine Griezmann fires beyond Thibaut Courtois from the penalty spot after David Luiz fouls Lucas Hernandez at a corner
- Also: CSKA Moscow 1-4 Manchester United
That is it from me for now, thanks for following along. IBTimes UK will be back tomorrow evening to bring you live coverage of Arsenal's Europa League tie against Belarusian champions BATE Borisov.
Until then, it's goodbye.
A quick look at the other full-time scores before we leave you. Strong wins for Manchester United and Celtic make this a particularly memorable night for British teams in Europe.
FC Basel's thrashing of Benfica also stands out, as does Paris Saint-Germain's comfortable victory over Bayern Munich.
Atletico will be keen to move on from their first defeat in any competition this season. They travel to Leganes this weekend before hosting Barcelona.
Their next Champions League tie is against Qarabag in Baku.
That last-gasp win takes Chelsea top of Group C. A further confidence boost before they entertain Premier League leaders Manchester City on Saturday.
Next up in Europe is a potentially tricky double-header against Roma. They host the Italians on 18 October.
A moment for Chelsea fans to savour as the camera immediately pans to a distraught-looking Diego Costa in the stands. What a night for the visitors in Madrid.
Atletico Madrid 1-2 Chelsea
Stunning late drama at the Wanda Metropolitano as Chelsea claim victory with literally the last kick of the game.
The Blues decide to work the ball short and they get their reward for that patience when substitute Batshuayi sweeps home from close range after being picked out by Alonso. There was also a great little flick from Bakayoko to keep that attack alive.
Goal: Atletico Madrid 1-2 Chelsea (Michy Batshuayi)
Koke kicks David Luiz, who starts holding his face for some bizarre reason. Last chance for Chelsea from a free-kick.
Atletico are doing all the pressing late on here. Gimenez finds a lot of space and drives a poor shot over the top.
He wants a corner, but he's not going to get it.
David Luiz clears a long throw-in and Cahill demonstrates good strength to stop the disappointing Griezmann in his tracks.
Three minutes of added time have been signalled by the fourth official. Is this entertaining contest destined to end in a draw, or is there a late twist in the tale to come?
Torres attempts to connect with Gimenez's cross but the ball sails harmlessly out of play for a goal kick.
Conte engineers something of a reshuffle, withdrawing Fabregas and sending on Christensen. David Luiz looks to be moving into midfield for the final few minutes.
Bakayoko looks to get away with a silly late foul on Torres. That could potentially have been a penalty.
Willian then inexplicably gifts possession back to Griezmann, who cannot test Courtois.
Willian replaces Hazard and Morata, whistled off the pitch by the passionate home fans, makes way for Batshuayi.
Griezmann wins a free-kick off Cahill but again his delivery from a decent area leaves a lot to be desired. Kante clears.
Willian and Michy Batshuayi are both about to come on for Chelsea. Fabregas sloppily concedes possession and breathes a sigh of relief as Saul curls a shot into the arms of Courtois.
Torres somewhat greedily fires straight at Courtois and Simeone looks to his bench for the third and final time tonight. Gimenez comes on for Partey.
Hazard's cross finds a path all the way through to Kante. The French midfielder steps inside Gaitan and creates space for a shot that fizzes wide.
Simeone's second substitution in as many minutes sees Nico Gaitan replace Correa. 20 minutes remaining of this finely-poised Champions League encounter.
A very familiar face to both sets of supporters enters the fray. Carrasco makes way for Torres.
Godin rises to meet a searching free-kick but is whistled for climbing all over the back of Cahill.
Partey then launches a wretched shot into orbit.
Chelsea should score a second goal in quick succession after Atletico fail to adequately clear their lines. However, Fabregas looks to get his boot caught in the turf and a tame left-footed effort from close range goes wide.