Swiss man's tennis star Roger Federer announced on his personal social media on the 15th that he would retire after the Laval Cup in London next week. Federer, 41, has been plagued by injuries in recent years. He has undergone three knee surgeries in the past two years. He has not participated in other competitions since Wimbledon in July last year because of his knee injury. "As you know, in the past three years, I have been plagued by injuries and underwent surgery. I have tried to recover to my best competitive state, but I also know my physical ability and limits. It sends me a signal that I am 41 years old." Federer said. "In the past 24 years, I have played more than 1500 matches. Tennis has given me too much, which is beyond my imagination. Now I must realize that it is time to end my career. The Laval Cup in London next week will be my last ATP tournament. Of course, I will continue to play tennis in the future, but not in Grand Slam and Tour." In his farewell letter, Federer thanked his wife, children, parents, sister, team, sponsors and opponents, and especially the fans. "You can't imagine how much strength and faith you have brought me." Federer said. "When I fell in love with tennis, I was still a caddie in my hometown of Basel. I was curious to watch the players play. They were like 'giants' to me at that time, and my dream began. Following my dream, I began to train hard, and gradually, I began to believe in myself. Some successes helped me build up confidence, and I also started this magical tennis road." Federer said, "I want to thank all of you from the bottom of my heart. It is you who made my tennis dream come true." In his 24 year tennis legend, Federer has won a total of 20 Grand Slam titles, including 8 Wimbledon titles, 6 Australian Open titles, 5 US Open titles and 1 French Open title. In 2003, Federer won his first Grand Slam title at Wimbledon. He won 103 ATP singles championships, 6 ATP year-end finals (Masters Cup) championships and men's doubles gold medals at the Beijing Olympic Games in 2008, and ranked first in the world for 237 consecutive weeks. "Finally, I want to say to tennis: 'I love you and will never leave,'" Federer said. (Liu Xinshe)