He went out after a 6-3, 6-0, 6-4 defeat by Sinner on Court Philippe Chatrier but it was not long before he began planning his immediate future.
'Beautiful draw': Retiring Gasquet meets Sinner in French Open swansong
French veteran Richard Gasquet was also among eight men given wild-card entries.
Three-time champion Novak Djokovic battled past Frenchman Corentin Moutet in a match that lasted more than three hours on Thursday.
Frenchman Richard Gasquet sounded a warning to Wimbledon champion Roger Federer after beating Swede Jonas Bjorkman in the final.
Rafael Nadal will take on Frenchman Richard Gasquet in the Clash of Titans match in Kuala Lumpur on Tuesday.
The Wimbledon champion will begin his defence against the talented Richard Gasquet of France
David Ferrer beat Frenchman Richard Gasquet 6-1, 6-2 to win the Japan Open title.
The world number one overcame a rocky start to beat the Frenchman in the final of the Toronto Masters.
The world number one battled his way past Fernando Gonzalez at the Toronto Masters to reach his 17th straight tournament final.
Frenchman Richard Gasquet has been cleared over a positive cocaine test after sport's highest court accepted that he was probably contaminated inadvertently by kissing a woman in a nightclub.
The 29-year-old Frenchman crashes 'top-four' party to set up semi-final against World No Djokovic
A razor-sharp Roger Federer got back to winning ways at the ATP World Tour Finals with a 6-4, 6-3 defeat of Frenchman Richard Gasquet on Thursday to keep his last-four chances alive.
Rafael Nadal reached the final of the Swiss Indoor tournament when he beat Frenchman Richard Gasquet 6-4, 7-6(7) on Saturday, a result that was good news for fellow Spaniard David Ferrer.
Top seed Richard Gasquet easily beat fellow-Frenchman Fabrice Santoro while Belgian Olivier Rochus got the better of Rainer Schuettler in the semi-finals at the Kingfisher Airlines Mumbai Open.
The year's final grand slam began with an upset as 13th-seeded Frenchman Richard Gasquet was upended 6-2 6-2 6-3 by Britain's world number 84 Kyle Edmund at the U.S. Open on Monday. Gasquet, who has reached the last 16 at Flushing Meadows four times in his career, was outplayed throughout and his U.S. Open experience lasted just one hour, 41 minutes.
Teenager Andreeva shows her mettle, Pegula advances at French Open
Marion Bartoli had barely registered on the tennis scale before but that did not stop her from destroying Justine Henin's Wimbledon dream.
The American slumped to a 7-6, 2-6, 6-4 defeat by Frenchman Fabrice Santoro in the first round of the Lyon Grand Prix.
Only Frenchman Richard Gasquet stands in the way of a Spaniard appearing in next Monday's men's final after Rafa Nadal, Tommy Robredo and David Ferrer all sailed into the quarter-finals.
Germany's Bjorn Phau beat South African Wesley Moodie in the only other first round match that was completed before rain intervened at the Mumbai Open.
Richard Gasquet won a 13th career singles title by beating fellow Frenchman Paul-Henri Mathieu 7-5 6-4 in the Open Sud de France final in Montpellier on Sunday.
Richard Gasquet sent French Open champion Stanislas Wawrinka flying out of Wimbledon on Wednesday, winning the battle of the slingshot backhands 6-4, 4-6, 3-6, 6-4, 11-9 to reach the Wimbledon semi-finals for the second time.
Chilean Fernando Gonzalez became the seventh player to qualify for this month's Masters Cup despite losing in the second round of this week's Paris Masters.
Spain's Rafael Nadal charged back from a set down to beat Frenchman Richard Gasquet 3-6 6-3 6-4 in the opening match of the Tennis Masters Cup, while David Ferrer made it a perfect day for Spain with an impressive 6-4 6-4 victory over Serbia's Novak Djokovic in the second Gold Group match.
World number three Novak Djokovic reached his first final of the season when he beat third-seeded Frenchman Gilles Simon 3-6, 7-5, 7-5 at the Dubai Championships on Friday. The Serb will face fourth seed David Ferrer after the Spaniard overwhelmed Frenchman Richard Gasquet 6-2, 6-2.
World number three Novak Djokovic reached his first final of the season when he beat third-seeded Frenchman Gilles Simon 3-6, 7-5, 7-5 at the Dubai Championships on Friday.
Rafael Nadal steamrolled compatriot Tommy Robredo 6-0, 6-2, 6-2 to move into the semi-finals of the US Open at Flushing Meadows on Wednesday.
World No 6 Tomas Berdych will miss Czech Republic's Davis Cup quarter-final next week when the champions take on Kazakhstan.
British tennis maestro Andy Murray has reclaimed his second spot from Roger Federer in the latest ATP rankings after winning his maiden Italian Open title.
World number one Roger Federer breezed into the Swiss Indoors semi-finals on Friday but the home crowd's hopes of an all-Swiss final were dashed when Novak Djokovic rallied to beat Stanislas Wawrinka.
Defending champion James Blake and top seed Andy Roddick won their opening matches in straight sets at the Indianapolis Championships on Tuesday.
Rafa Nadal and Novak Djokovic will clash at the Rome Masters in another dream showpiece on clay after winning their semi-finals Saturday in vastly different circumstances with the French Open just over a week away.
Women's top seed Russian Maria Sharapova will play France's Camille Pin in her first round match at the Australian Open.
Frenchman Gael Monfils overwhelmed compatriot and defending champion Richard Gasquet 6-4, 6-4 in the Montpellier International tournament final on Sunday to claim his first title in more than two years.
Second seed Andy Murray pulled out of the Dubai Championships Thursday with a virus.
Defending champion Novak Djokovic lost to Andy Murray in the Toronto Masters quarter-finals but Wimbledon champion Rafael Nadal survived a scare to advance on Friday. Nadal, in his first tournament since his epic five-set win over Roger Federer at Wimbledon, was pushed by Frenchman Richard Gasquet before rallying to claim a 6-7, 6-2, 6-1 victory.
Top seed James Blake eased into the US Clay Court Championships second round but fellow American Sam Querrey made an early exit.