The Rossoneri won the Serie A last season, but Boateng expects more of a challenge from their rivals this season.
“I want to win everything and we will be focussed on all competitions,” Boateng told Sky Sport Italia.
“I cannot wait to start playing again after a long pre-season.
“We are all eager to start playing, but there are many teams who are interesting this year like Napoli, Lazio and Juventus.
“They have all strengthened and I cannot wait to play against them.”