Pato raised doubts over his future by saying that he needed to talk to coach Carlo Ancelotti, who left Milan to take over at Chelsea, before deciding his future.

"There is a 99.9 per cent chance that our big players will stay. The only exception is Pato. He is 100 per cent staying," Galliani was quoted as saying in Calcio Italia.

"Pato is the strongest 19-year-old in the world."

Milan have already lost a star in inspirational playmaker Kaka, who joined Spanish giants Real Madrid.

Pato is currently preparing to take part in the Confederations Cup with his national team Brazil.