"AC Milan will make an effort to go back to Busto Arsizio especially for the children and for those who have nothing to do with racism but a message had to be sent against such uncivilized people."

AC Milan director Umberto Gandini added on Twitter: "Very proud of the Milan players who decided to walk off the pitch today for racist abuse from few idiots! No racism, no stupidity!"

Milan returns to league action on Sunday against Siena.