The 29-year old underwent heart surgery recently and it is unsure when he will return so Boateng has urged the Rossoneri to look at signing either Catania's Maxi Lopez or Manchester City trouble maker Carlos Tevez.
"Maxi Lopez is good and plays well. But Tevez would be perfect for Milan," the Ghanaian said.
"He's fast, can defend and is aggressive. I think that the San Siro wants a player like him.
"But it is not for me to decide. Tevez could act as a playmaker, or open up to the right or left."