US Open 2016: Novak Djokovic Cruises to Semis, Sania-Barbora Crash Out

Defending champion Novak Djokovic reached his 10th successive US Open semifinal when Jo-Wilfried Tsonga retired from their quarterfinal match with a left knee injury while trailing 3-6, 2-6. On the other hand, Sania Mirza and Barbora Strycova were knocked out of the women's doubles event. (Images credit: AP/AFP)