Prosecutor launches criminal inquiry in to racism at AC Milan match that saw Kevin-Prince Boateng lead off team Thank u all for the support and understanding ... means a lot!!! Boateng tweeted on Friday. Former France international Lilian Thuram, who played in Italy with Parma and Juventus, noted that it was "the first time a big club took responsibility to make such a decisive step" by walking off. "Indifference prevails in the majority of cases," Thuram told the Gazzetta dello Sport. Teammates tend to lower their eyes and look elsewhere, underestimating the suffering of the players of colour who are targeted. "That's why I applaud the sensibility of a great player like (Milan captain) Massimo Ambrosini," Thuram added. He took responsibility which gives a huge amount of help to the fight against racism. Patrick Vieira, another former France international who played in Italy, was also supportive. "It was brave of Kevin Prince Boateng to do what he did today, and it was the right thing," Vieira tweeted. We need to stand up and stand together. Well done. Meanwhile, Pro Patria president Pietro Vavassori announced that he would open the club's stadium to "all people of colour" at its next match, inviting them to sit in the tribune of honour. "Our hope is that the other Lega Pro (third and fourth division) presidents also support this initiative," Vavassori said. The people who made those chants are not regular fans, but rather people who came to the stadium with the intention of ruining a festive match. Vavassori added that Boateng's reaction was "understandable."