When Roger Federer beat Pete Sampras at Wimbledon in 2001, the world saw the tennis star of the future. Like Sampras, Federer served well and knew how to volley. Like Sampras, he could smash forehands and one-handed backhands. And like Sampras, Federer, at 19 years old, eventually went on to dominate tennis. Now Federer, age 37, knows how Sampras felt.

Source: Wall Street Journal January 20, 2019 15:45 UTC