This article may contain graphic and/or adult content unsuitable for minors and sensitive readers.
Stanislas Wawrinka dumped three-time defending champion Novak Djokovic out of the Australian Open, with a thrilling five-set victory on Tuesday.
The Swiss eighth seed beat Djokovic 2-6, 6-4, 6-2, 3-6 and 9-7 in a four-hour quarter-final to set up a semi-final with Czech seventh seed Tomas Berdych.
It ended a 14-match losing run against Djokovic for Wawrinka, who had gone down in two previous five-setters in majors to the Serb, at last year's Australian Open and US Open.
The stunning defeat halted Djokovic's 28-match unbeaten run since the US Open final and his 25-match winning streak at the Australian Open stretching back to 2011.
Meanwhile, South African tennis player Raven Klaasen, who originally hails from the Eastern Cape, and his American partner, Eric Butorac advanced to the semi-finals of the men's doubles at the Australian Open in Melbourne on Tuesday.
They narrowly defeated 12th seeds Filipino Treat Huey and Dominic Inglot of Great Britain 6-7 , 7-6 and 6-4.
The unseeded pair caused a major upset early in the week, knocking out top seeds and world number one pair, twin brothers Bob and Mike Bryan of the US 7-6 and 6-4 in round three.
They will meet the winners of the match between Australians Alex Bolt and Andrew Whittington and eighth seeds Daniel Nestor of Canada and Nenad Zimonjic from Serbia on Thursday.
The last South Africans to reach the semi-finals of the Australian Open doubles were the unseeded pair of Wesley Moodie and Jeff Coetzee back in 2008.
