Roger Federer, with 20 Slam triumphs, along with Novak Dokovic, is the second most successful player in the history of men’s tennis in Grand Slam tournaments after Rafael Nadal, with 21. He is in second place in the all-time ranking of weeks spent as number 1 in the world (310), behind only Dokovic.However, he holds the record for consecutive weeks spent at the top of the rankings (237) and, at 36, has become the longest-lived player at the top of the rankings. In 2009 with the victory in Roland Garros he completed the Career Grand Slam.In 2017, by beating Marin Čilić in the final, he became the only man to have won Wimbledon eight times, the oldest and most prestigio …