The seven-time Grand Slam champion, who hasn't played since last August's US Open, said he is excited to step into the real world. "My tennis journey ends after 36 years," the 40-year-old Murray announced on Instagram. "I feel very happy and privileged for all the incredible experiences this brilliant sport has given me," he added. The brother of Andy Murray, the far more well-known legend of British singles tennis, thanked his family and friends who supported him throughout his career. "Thank you to Mum, Dad, Andy, Ale, Alan, Louis, and Thomas for your incredible support, effort, and sacrifices during my career, which allowed me to achieve everything I could in the game. To everyone else who helped and supported me—I appreciate you all," said the experienced Scot. Jamie Murray was the world's best tennis player, having been ranked number one on the ATP doubles list since 2016. He also won the Davis Cup with the Great Britain team in 2015.