“When Roger Federer won back his Australian Open title a year ago, five years after his previous Grand Slam title, it felt like an impossible gift from the past, one final reminder of what had once been at a time when all assumed it had gone forever. The man was 35. He had been out for six months after knee surgery and back problems, 17th seed for a reason. You were astonished by the comeback and you were thankful to have witnessed one glorious final heist.” Well, it turns out that the comeback would be marked by more than just one more Grand Slam win. And over the weekend, Federer won his 20th. Ridiculous.