Roger Federer has a trunk full of titles, records and winning streaks, some which have defied logic. But at the 30 years old, his last month of play has to be put right up there with the most eye-popping sequences of his career. On Sunday, Federer became the first player to win the ATP World Tour Finals six times by taking down Jo-Wilfried Tsonga 6-3, 6-7(6), 6-3, to become the oldest titlist at the year-end championship.
He is already is the tour