Reigning US Open champion says second surgery went well.
The defending WTA Finals champions have qualified for Singapore, along with Hingis and Chan.
The Spaniard talks about reaching No.1 for the first time in a long time.
Ashley Kratzer and Patrick Kypson are going to the U.S. Open in 2017.
The Spaniard has a leg up in the race to No.1 but there are ways that Federer can catch him.
The Russian hopes to be healthy and play the U.S. Open
The Dutchman won a few fans--and a lot of applause--after cracking a mid-match joke in Montreal.
