London: Three-time major winner Stan Wawrinka was knocked out of Wimbledon on Wednesday, falling in five sets to 6ft 11in (2.1m) Reilly Opelka. Two-time quarter-finalist Wawrinka, 34, was beaten 7-5, 3-6, 4-6, 6-4, 8-6 by his American opponent, the tallest man in the sport and 13 years his junior.
Also feeling the pain was Russia's Margarita Gasparyan who was forced to retire when just two points from victory against Ukraine eighth seed Elina Svitolina.
World number 62 Gasparyan was 7-5, 5-4 ahead when she collapsed to the ground on Court Three, suffering with cramping. "It's really unfortunate for her."
Czech third seed Karolina Pliskova reached the last 32 with a 6-0, 6-4 win over Puerto Rico's Olympic champion Monica Puig. Former world number one and double Australian Open winner Victoria Azarenka swept past Australia's Ajla Tomljanovic 6-2, 6-0.
