Roger Federer

ANALYSIS
Just having Federer on the court in a professional setting for his official swan song will be enough since he hasn't taken the court once in 15 months, but his inability to play singles even after all this time away rehabbing shows that a full comeback to the ATP Tour was even more of a longshot than the public realized. The 41-year-old will presumably play just one doubles match, which will take place Friday night in London.