The pair are former teammates.
"I'm not surprised he has this job," Inzaghi said at a press conference. “We are talking about a champion who, as a player, has won everything.
“There has always been a great relationship between us, as we arrived at Milan together.
“I remember we had the same agent, Tullio Tinti, who offered him to the Rossoneri the day I signed.
“He didn't find space at Inter and we eventually did great things at Milan together."