No, Roger Federer has not gone off the deep end, although that new beard may look like it. Instead, before taking off (and shaving it all off) for a Laver Cup promotional event with Tomas Berdych ...

Roger Federer is gearing up for the 2018 season, and shared a photo from the gym with the proof. He'll be defending his Australian Open title in January, but this time, with a ranking of No. 2.