I wouldn't be going mad if Balotelli did it because in the end Chelsea won the game. As for saying Costa's a cheat, you're way off, he likes a physical battle but that's far from being a cheat (It's called passion) and Costa respects defenders that give it back, he likes a battle.
i ment if chelsea didnt win the game liverpool win one nil after balotelli clearly stamps on 2 players. he is a dirty **** was when he was with atletico madrid and still is now he is at chelsea