Career
Leonardo usually plays as an attacking midfielder but can also play as a winger and a side midfielder. On July 30, 2009, Leonardo signed a five-year contract with AEK Athens. On August 20, Leonardo made his official debut for AEK, in the game versus Vaslui in the Europa League.
He scored his first goal for AEK on 6 December, against Panionios.
AEK"s next fixture was facing Aris again, held in Kleanthis Vikelidis Stadium. The score was 1–0 against AEK, and Leonardo (who had also come in as a substitute that match) made the score 1–1 and equalized in injury time, giving AEK an invaluable point.
In the 2011/12 season, he played in 26 matches scoring 9 goals, and was the club top scorer in the league.