Gaël Sébastien Monfils is a French professional tennis player. He has been ranked as high as world No. 6 in singles by the ATP, which he achieved in November 2016. His career highlights include reaching two major semifinals at the 2008 French Open and 2016 US Open, and three ATP Masters 1000 finals – two at the Paris Masters in 2009 and 2010, and the other at the 2016 Monte-Carlo Masters. Monfils was named the ATP Newcomer of the Year in 2005. He has won twelve ATP Tour singles titles and has been runner-up twenty-two times. He has reached at least one ATP Tour singles final every year since 2005 for 19 consecutive seasons, and is one of four players in the Open Era to do so for 19 or more seasons. He is also eight among active players with 550 career match wins.

The Paris Masters is an annual tennis tournament for male professional players held in Paris, France. It is played indoors at the AccorHotels Arena, in the neighborhood of Bercy, and is held in early November. The event is part of the Masters 1000 series on the Association of Tennis Professionals (ATP) Tour.