GOAL - AC Milan 0-1 Arsenal
Henrikh Mkhitaryan
Moments after they could have conceded a penalty, Arsenal lead. Mesut Ozil plays a good pass over the top to Henrikh Mkhitaryan, who cuts inside onto his right foot - and his shot loops in off Leonardo Bonucci's back.
It's Mkhitaryan first goal since his January move from Manchester United.
GOAL - AC Milan 0-2 Arsenal
Aaron Ramsey
Mesut Ozil plays an excellent through ball to Aaron Ramsey, whose quick feet leaves keeper Gianluigi Donnarumma on the ground - and he can tap into an empty net.