Gian Piero Gasperini's men, who have reached at least the semi-finals in three of the previous five seasons, secured a winning start thanks to two goals in the space of three second-half minutes from Evan Ndicka and Gianluca Mancini.

Terem Moffi pulled one back for Nice from the penalty spot with 13 minutes to play, but Roma held on to kick off their Europa League campaign with a victory.