Career
Mollo is often deployed as a winger and can play on both the right and left flanks. Mollo began his football career with Olympique de Marseille in 1996, who were at the time attempting to bounce back from the bribery scandal the club had endured in the early 1990s. After spending nearly eight years in Marseille"s youth system, Mollo had a one-year spell at local club Aubagne Football Club before moving to the principality-based side Monaco.
Just before the end of the 06–07 season, Mollo and Monaco agreed to terms on a professional contract with the player signing for three years.
Mollo was promoted to the first-team and handed the number 26 kit for the 2008-2009 season. He made his professional debut on 18 October 2008 in a 1–2 loss to Office of Government Commerce Nice appearing as a substitute.
On 7 December 2009, Mollo signed his first professional contract with Monaco. In the summer of 2015, he joined Football Club Krylia Sovetov Samara in the Russian Football Premier League on loan.