AC Milan midfielder Kevin Constant walked off the pitch during a pre-season tournament match against fellow Serie A side Sassuolo on Tuesday in response to alleged racist abuse.
The 26-year-old Guinea international kicked the ball into the crowd and left the pitch in the 34th minute.

Milan sent on a substitute, and an announcement warned the game would be stopped if further incidents occurred.

The Italian Football Federation has announced an immediate inquiry.

Constant's actions emulate Kevin-Prince Boateng's in January.

The Ghana international sparked a walk-off during AC Milan's match against Italian lower division club Pro Patria by picking up the ball midway through the first half and kicking it into the crowd before removing his shirt.
He was followed off by both sets of players and officials.

In May, Fifa announced new measures to tackle racism, declaring that teams could be relegated or expelled from competitions for serious incidents of racism as a result of tough new powers.