AC Milan vs Chelsea LIVE: Champions League result, final score and reaction after Reece James injury

Referee Daniel Siebert made a swift exit at half time after being booed off by the Milan fans. He has not been shy with his cards in the first half...

Chelsea lead through Jorginho's penalty and Aubameyang's second but Tomori's controversial red card is the big talking point at the San Siro.

45 +2 mins: Chelsea play keep ball in the Milan half before Kovacic almost rolls in Mount, who made a nice run. Milan look beaten already.

45 mins: We were expecting there to be a lot of added time after all the free kicks and stoppages and indeed there is. Five minutes added on.

44 mins: Save! Superb from Mount to roll away from Hernandez and fire a low shot, which is saved by Tatarusanu at his near post. Mount has had a brilliant first half.

42 mins: Zabreg have now equalised against Salzburg - long way to go there but it puts Chelsea top as things stand.

40 mins: Graham Potter will be very satisfied with his how team are going about their business now - just stroking the ball around and opening Milan up using the space.

Which is just what they did for the goal. That was a lovely goal from Chelsea.

36 mins: Things are suddenly looking pretty good for Chelsea. Remember when they drew at home to Salzburg and were bottom?

There’s another booking - this time for Tonali for dissent. It’s already pretty ugly and it could get worse.

Milan now sacrifice the attacker Diaz for right back Dest.

Game over? But what a goal from Chelsea! Great football.

After a slick move, Mount slips in Aubameyang, who moves Sterling out the way, and then finishes past Tatarusanu at his near post.

It’s his third goal already for Chelsea.

31 mins: Milan have responded well to the red card and going behind but now Hernandez blazes a free kick high and wide.

And now a yellow card for Gabbia after a foul on Mount. The referee has lost control of this one.