Italy coach Cesare Prandelli played down a racist incident aimed at striker Mario Balotelli at a pre-World Cup training camp but striker Ciro Immobile said players have to help stamp out the scourge.

AC Milan striker Balotelli was believed to be the target of a racist insult from a youth as players were put through their paces during the second day of a 10-day training camp at Coverciano in Florence.

When asked about the incident, Prandelli said: "I didn't hear what was said. All I heard were pleasantries."