While he remains as energetic on court as ever, Roger Federer has spent a lot less time in action in 2017 compared to previous seasons. Paul Chiasson / The Canadian Press via AP
While he remains as energetic on court as ever, Roger Federer has spent a lot less time in action in 2017 compared to previous seasons. Paul Chiasson / The Canadian Press via AP

Rest and smart scheduling behind Roger Federer being on verge of going to world No 1 at US Open at expense of Rafael Nadal