England and Serbia players ended up in a mass brawl.
Danny Rose (England) was sent off during the brawl for kicking a ball at the crowd. He made mocking monkey gestures signalling that he had been racially abused.
EDIT: Crowd video where you can clearly hear monkey chants from crowd. http://www.youtube.com/watch?feature=player_embedded&v=9ZZY9U1CdDs#!