Monfils, 25, ranked No. 13 in the world, made it to the semi-finals last year in the French Open, which begins Sunday in Paris.
The Frenchman lost to American Brian Baker Wednesday in the second round of the Open de Nice Cote d'Azur tournament in Nice.
Selena Gomez drops F-bomb, walks off stage during Jingle Ball performance
Reindeer recovered after escaping from Santa during lighting ceremony