'We will have to see if it's worth carrying on in Italy'Amy Lawrence: Boateng's stand is a vital response

Kevin-Prince Boateng is considering his future with Milan in the wake of the racial abuse that prompted him to walk off the pitch during a friendly this week.

The Ghana midfielder was followed off the pitch by his team-mates at fourth-tier side Pro Patria after several players were racially abused. The 25-year-old has been publicly back by Milan, with the club president, Silvio Berlusconi, insisting that his players would always walk off the pitch if they are subjected to further racist abuse.

Boateng has, however, revealed he could be forced to turn his back on the Serie A club after telling Germany's Bild newspaper he is now considering whether to leave Italy during this transfer window. "It's not something which you can just shake off," he said. "I will sleep on it for the next three nights and then sit down with my agent Roger Wittmann next week. We will have to see if it's really worth carrying on playing in Italy."

The Italian FA responded to the incident by announcing they would conduct an investigation while Boateng, who is contracted at San Siro until 2014, has received widespread support from around the football world.

The midfielder said he was proud his team-mates had joined him in boycotting the match and revealed the chants started before the game commenced.

"I could hear the first monkey calls after five minutes when I was on the ball," he said. "At first, I didn't think anything of it but then it happened over and over again. I went to the referee and told him that if I hear it again, then I'd quit. He tried to calm me down. When it started again in the 26th minute with the monkey calls, then I thought: 'That's it, I'm not carrying on.'"

Boateng told CNN on Friday that he would walk off the pitch again should he face further racist chants – despite Fifa and Uefa warning players against that action. Boateng said he wanted to send out a message that racism would not be tolerated.

"It's easy to just turn a blind eye; taking action is more difficult," he added. "I would have done the very same thing had it been a Champions League match against Real Madrid – and I will always do it.

"I was angry, sad, shocked. For things like this still to happen in 2013 is a disgrace, not just for Italy, but for football in the whole world. I wanted to send out a signal to the whole world that things cannot go on like this. We need to open our eyes. Enough is enough. Racism has no place in football."