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FT: AC Milan 0-2 Chelsea - Jorginho penalty after Tomori sent off, Aubameyang gets second
FT: Copenhagen 0-0 Manchester City - Rodri goal ruled out, Mahrez penalty saved, Gomez sent off
Elsewhere, Celtic host RB Leipzig, Real Madrid face Shakhtar and Dortmund welcome Sevilla
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There is no stopping Jude Bellingham at the moment.
He bundles in from Thomas Meunier's cross and Borussia Dortmund are level at 1-1 against Sevilla.
That is four Champions League goals in four games for the England midfielder. Only Erling Haaland has netted more.
Good news for Manchester City too.
Pierre-Emerick Aubameyang
Against his old club!
Chelsea double their lead and are now in total command of this game.
Lovely interplay from the Blues, Mateo Kovacic fizzing a pass into the feet of Mason Mount, who lays it off first time for Pierre-Emerick Aubameyang to thump in a finish at the near post.
Graham Potter and his side are in dreamland.
AC Milan 0-1 Chelsea
Matteo Gabbia barges Mason Mount over and the AC Milan defender is shown a yellow card of course.
AC Milan 0-1 Chelsea
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AC Milan 0-1 Chelsea
Oh dear.
AC Milan skipper Theo Hernandez goes for goal from way out wide, but the free-kick ends up in Row Z.
AC Milan 0-1 Chelsea
This referee loves a card, he can't go to his pocket quick enough.
This time Raheem Sterling is the man cautioned for a lunge on Rade Krunic.
Watching the replay, the England international might be lucky it's only a yellow, he went in two-footed there.
AC Milan 0-1 Chelsea
Rob Green
Former England goalkeeper on BBC Radio 5 Live
Brilliant chance for Olivier Giroud, the sort of thing he has lived off for years and years.
The goal is gaping and he has just skewed it wide off his head. They will not get as many good chances as that in the 90 minutes.
AC Milan 0-1 Chelsea
And this is why Chelsea need to go for it because the longer it stays 1-0, the longer AC Milan stay in the game.
A cross comes in from the right, you want one man to get his head on this and that man is Olivier Giroud, but the Frenchman plants his free header wide from around eight yards out.
That's a shocker from the ex-Chelsea and Arsenal frontman, Milan should be level.
Image source, Reuters#bbcfootball or text 81111 (UK only - standard rates apply)
Jarvis Whiteley: What an absolutely shocking decision, if that is a red card for Tomori then football has gone mad!
AC Milan 0-1 Chelsea
Jorginho is just the third Italian player to score against an Italian team in the Champions League, after Cristiano Lucarelli (Shakhtar v Milan in Oct 2007) and Mario Balotelli (Man City v Lazio in Nov 2011).
AC Milan 0-1 Chelsea
Chelsea need to go for the jugular now and put this game to bed.
AC Milan 0-1 Chelsea
Rob Green
Former England goalkeeper on BBC Radio 5 Live
Coolness personified.
Jorginho had tens of thousand of fans booing him, laser pens aimed at him and the megaphone trying to put him off.
But he steps up with the Jorginho hop, waits for the goalkeeper and rolls it in the opposite corner.
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Abu'Abukakar: How's that a red card and even the penalty is questionable
AC Milan 0-1 Chelsea
Chelsea have scored from their last eight penalties awarded in the Champions League, last failing to score in October 2020 against Krasnodar (penalty missed by Jorginho).
AC Milan 0-1 Chelsea
AC Milan having to play more than 70 minutes of this game with 10 men.
And it had to be Fikayo Tomori the man to be dismissed.
Jorginho
Cool as you like, Jorginho steps up and converts the penalty, sending Ciprian Tatarusanu the wrong way.
Image source, ReutersAC Milan 0-0 Chelsea
Rob Green
Former England goalkeeper on BBC Radio 5 Live
It's a massive decision and it's the right decision. Mason Mount has got the right side of him.
It's a wonderful ball by Reece James and Fikayo Tomori is not attempting to play the ball.
It's just a straight pull on the shoulder and it's a clear penalty. It's a huge moment in this game and in this group.
AC Milan 0-0 Chelsea
The referee is losing all control here, booking Mason Mount and an AC Milan player before the penalty is being allowed to be taken.
AC Milan 0-0 Chelsea
And a double whammy.
The referee points to the spot as well.
Fikayo Tomori is apoplectic and is taking his time coming off the pitch.
He can't believe it.
AC Milan 0-0 Chelsea
Fikayo Tomori is off!!
The former Chelsea defender is chasing back on Mason Mount, he lays a hand on the shoulder of the Chelsea midfielder, putting him off balance but still getting the shot away.
The referee blows his whistle, strides over and brandishes a straight red card.
Tomori looks shocked and so do his AC Milan team-mates.
Image source, Getty Images