Serena exits Olympics after third round loss

Defending champion Serena Williams is out of the Olympics after losing to Ukrainian Elina Svitolina in the women’s singles third round. Williams lost 6-4 6-3 to Svitolina, ranked 20th in the world.

The world number one’s struggles were highlighted by five double faults in the seventh game of the second set. Williams and sister Venus were knocked out of the women’s doubles on Sunday when they lost to Czech Republic pair Lucie Safarova and Barbora Strycova.

Williams follows men’s top seed Novak Djokovic in exiting the Olympics after he was defeated in the men’s singles and doubles. (BBC Sport)