Paolo Berlusconi, AC Milan's vice president, was lambasted in social media after calling former Manchester City forward Balotelli "the little black boy of the family".
A video of his comments, made on Sunday after a political event, was going viral after it was posted on various websites, including Tuttosport.
"And now let's go and watch the little black boy of the family, the crazy head," Paolo Berlusconi says in the video.
A spokesman for the Serie A club said on Wednesday there would be no comment on the video, which was recorded on the day Balotelli made his debut for AC Milan after being transferred from English Premier League club City last month.
Criticism of Paolo Berlusconi's remarks took off after foreign media began writing about the video, which had received relatively little attention in the Italian press in the past few days.
"Balotelli is back in Italy for two minutes and already had racist comments made about him. Why do black players even play in Italy?," one person tweeted.
Other tweets slammed the comments as "appalling", "gross" and "idiocy".
Balotelli, playing three days after leaving City, scored both goals in Milan's 2-1 home victory over Udinese on Sunday.
UNDER FIRE
After making the "little black boy" remark, Paolo Berlusconi told his listeners at the event for a local centre-right candidate: "All the young ladies are invited as well - you can even have a chance to meet the president" - an apparent reference to his older brother Silvio, who is club president.
While Paolo was taking the heat for his comments, Silvio Berlusconi was still under fire over his motivation for bringing the hot-tempered Balotelli back to Italy in the first place, having previously said Milan did not need a "rotten apple".
For the past week, former prime minister Silvio has been the regular butt of jokes by comedians and attacks by his political rivals over the transfer, which they see as a clear attempt to woo Italian football fans to vote for his centre-right coalition.
Last week L'Unita, the paper of the main centre-left party, said nationwide fans of Milan, who won the Italian championship in 2011 but are now fourth in the Serie A standings, could influence about 1.3 percent of the vote.
L'Unita said thrusting Balotelli into the election campaign was "the devil's touch", a play on words because Milan's mascot is a red-and-black devil.
Another paper said the move was so blatantly political that it called Balotelli "Candidate Mario," in an editorial.
MONKEY CHANTS
Balotelli is no stranger to racism, real or perceived.
He was born in Sicily to Ghanaian parents and given up for adoption to an Italian family at the age of three. He grew up in northern Italy and became an Italian citizen at 18.
Both in Italy and during the 2012 European Championshi
