Stan Wawrinka to miss US Open title defence
Reigning US Open champion Stan Wawrinka will miss his title defence to have knee surgery, the world number four announced on Friday.
The three-time Grand Slam champion had already pulled out of the upcoming ATP tournaments in Canada and Cincinnati, and joins last year's US Open runner-up Novak Djokovic on the sidelines for the rest of the season.
"This was the only solution to make sure I will be able to compete at the top level for many more years," the Swiss said in a statement on Facebook. "I will see you all in 2018!"
© 2017 AFP