; born 1 September 1986) is a French professional tennis player. Monfils compiled a singles win–loss record of 83–22 as a junior, reaching the No. Over the course of the same year, he would end up winning the Boys' Singles titles at the Australian Open, the French Open and Wimbledon respectively. He reached the quarterfinals of the Australian Open juniors tournament (losing to Florin Mergea) and won the doubles title at the Victorian Junior Championships (with Josselin Ouanna). 1 junior, winning the first three of four junior Grand Slam events (Australian Open, French Open, Wimbledon).He reached a career-high Association of Tennis Professionals (ATP) world No. His career highlights include reaching two Grand Slam semifinals at the 2008 French Open and 2016 US Open, and three ATP World Tour Masters 1000 finals at the Paris Masters in 20 and in the 2016 Monte-Carlo Masters. In 2002, Monfils finished 24th at the Dutch Junior Open and won the German Junior Open (defeating Bayer). 4 junior in the world and also represented France in the junior Davis Cup as well. He improved his ATP Entry Ranking by over 700 positions.1 paddle tennis player Scott Freedman and eventually went on to win the whole tournament.In May, Monfils reached the semifinals of the Rome Masters, before losing to eventual champion Rafael Nadal in straight sets.In the last three months, he went 15–8, highlighted by his first ATP clay title at the Idea Prokom Open in Sopot defeating Florian Mayer in the final. 10 Gastón Gaudio in his first match of the season in Doha.Then he struggled with a 2–5 mark before reaching the final in two of the last three indoor tournaments of the season, both in his native country in Metz (losing to Ljubičić) and Lyon (losing to Roddick). He compiled records of 12–10 on hard courts, 6–7 on clay, 5–2 on carpet, and 2–3 on grass.He lost in the third round of the French Open to David Nalbandian in a four-set match.
Monfils was given a wildcard into the doubles event, but became more interested and inquired about getting a singles wildcard into the main draw.
Monfils got off to a positive start in 2003 and earned his first career ATP point at the France Futures No. In October, he made his ATP debut as a wildcard entrant at the Moselle Open in Metz and, after winning his first ATP match against Xavier Malisse, reached the quarterfinals in which he lost to countryman Richard Gasquet.
He won junior titles at the Australian Open (defeating Ouanna), French Open (defeating Kuznetsov), and Wimbledon (defeating Kasiri).
At the Australian Open, Monfils lost to his compatriot Richard Gasquet in the third round in four sets.
Monfils had a good run in Poertschach as a warm-up for the French Open, but lost in the final against Juan Mónaco of Argentina in straight sets.