Good grief, that was brilliant. Former Tottenham Hotspur midfielder Kevin-Prince Boateng has just made Arsenal's day rather painful, opening the scoring at the San Siro with a wonderful volley. Wojciech Szczesny's at fault - his kick gives possession straight to Milan, and the ball is lofted forward to Boateng, making a run in the right side of the penalty area.
It's a difficult take, but the Ghana international controls the ball with his chest before slamming in a monstrous volley that flies over Szczesny before dipping just enough to hit the bottom of the crossbar and slam into the back of the net. The ball was hit so hard that it bounced straight out of the goal, but there was no doubt about it being legitimate, and so Milan lead 1-0. Arsenal's defence, which is supposedly at something like full strength, is being given a torrid time here, although their attack is looking ok.