On August 20, Leonardo made his official debut for AEK, in the game versus Vaslui in the Europa League.

In the Greek playoffs home 4–2 win against Aris, Leonardo came in as a substitute in the 51st minute and scored twice.

In the 2011–12 season, he played in 26 matches scoring 9 goals, and was the club top scorer in the league.

Leonardo is married to Kamilla Fiorese Da Silva, and the couple has two daughters.

[citation needed] AEK Athens Jeonbuk Hyundai Motors Al Jazira Club Individual