Switzerland tennis legend Roger Federer, considered one of the greatest to ever pick up a racquet, turned 42 on Tuesday. Ever since turning pro in 1998, Federer went on to clinch some of the most memorable wins in the history of the sport and won numerous titles. His 24-year run at the highest level of the sport showcases the consistency and longevity he had. Federer secured the number one position in ATP Rankings numerous times, ending as the year-end top-spot player on five occasions. Overall, he spent 310 weeks of his career as the number-one ranked player. Federer has won a total of 103 ATP tour-level championship titles in singles competition, the second-highest in the Open era next to America’s Jimmy Connors (109 titles). Out of these are 20 Grand Slam titles he has won across the Australian, French, US Open tournaments and the Wimbledon.