Aus Open: Day six in pictures

United States' Varvara Lepchenko had a tough day against Zhang Shuai of China, as she managed to win only four games. Photo: AP
Andy's fans cheering for him as the world no. 2 went past Sousa in in two hours and 24 minutes on the Margaret Court Arena. Photo: Reuters
Andy Murray overcame a second set slump to defeat Portugal's Joao Sousa in four sets. Murray will next meet Bernard Tomic or John Millman. Photo: Reuters
Less than 100 metres away from the Margaret Court Arena, Andy Murray's father-in-law and Ana Ivanovic's coach Nigel Sears collapsed and had to be taken to a hospital during Ivanovic's match against 15th seed Madison Keys. Photo: Reuters
Ana Ivanovic waves at the crowd as she leaves the arena having lost to Madison Keys in a three-set battle. Photo: Reuters
Canada's Milos Raonic serving against Viktor Trocki in a third round match. Raonic had a facile 6-2 6-3 6-4 win against his Serbian opponent. Photo: Getty Images
Spain's David Ferrer signs autographs after winning his third round match against Steve Johnson. Ferrer eased into a straight set victory. Photo: Reuters
Frenchman Gael Monfils acknowledges his fans after beating his compatriot Stephane Robert in straight sets. Photo: Reuters
Zhang Shuai vents her delight after beating Varvara Lepchenko. Photo: Reuters
The brightly dressed Stan Wawrinka dispatched his Czech opponent Lukas Rosol in straight sets. Photo: Reuters