Club A.C. Milan

Incumbent European champions A.C. Milan officially confirmed the signing of Pato on August 2, 2007.He stated before that Ronaldo and Kaká are his idols. The transfer fee paid amounts to the minimum fee clause in Pato's contract with SC Internacional for €22 million. His debut was a dream come true for young Alexandre Pato, scoring his first AC Milan goal at the San Siro.

Due to Italian football regulations regarding non-EU minors, Pato was unable to play official matches for Milan until January 3, 2008, when the Italian transfer window and registration reopened.However, AC Milan was allowed to include the player in friendlies and training beginning September 3, 2007, one day after his 18th birthday. Pato made his non-competitive debut in a 2–2 draw against Dynamo Kiev on September 7, 2007 and scored a header. on January 4, 2008, Pato's transfer to Milan became official.

Pato scored his first Milan goal in his Serie A début against S.S.C. Napoli in a 5–2 home victory on January 13, 2008. He scored his first brace for Milan in a 2–0 victory over Genoa C.F.C. in San Siro on January 27, 2008.