Serie A leaders Juventus have been fined 30,000 euros and warned about the future conduct of their fans after they made racist chants during Wednesday's 2-1 win at home to Lazio.

Chants were heard on five occasions during the match but the club and other supporters tried to silence the offenders, Serie A said.

Juve were forced to play a game behind closed doors three years ago after then-Inter Milan player Mario Balotelli was racially abused.