How do soccer players from teams like AC Milan communicate when they have different languages? Is it English?

They all communicate in Italian language; it's absolutely normal for football players learning the language of the Country they're going to play, since they're also going to LIVE there with their family; in several years I just once heard a player (apart who just arrived in Italy, of course) releasing an interview in a language other than Italian (Swedish Andersson, in English). In fact the ones who don't spoke good Italian are often the same with more difficult to play in Italy, like Ian Rush or Socrates: it's a sign they're facing difficult to settle in the new surroundings.. Kakà, Dida, Gourkouff, Seedorf, etc I grant you are absolutely fluent in Italian, and that's absolutely normal for football players.

yes, basically they have to learn the language where ever they go, so basically they learn spanish and english, because Europe and America are the places for english and spanish

they communicate mainly speaking English and Spanish