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Petra Kvitova of the Czech Republic wipes the sweat from her face during her quarterfinal match against Australia's Ashleigh Barty at the Australian Open.
Image Credit: AP
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Germany's Alexander Zverev, left, is congratulated by Switzerland's Stan Wawrinka after winning their quarter-final match at the Australian Open.
Image Credit: AP
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Australia’s Ashleigh Barty in action during her match against Petra Kvitova.
Image Credit: Reuters
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Germany's Alexander Zverev signs autographs after winning his men's singles quarter-final match against Switzerland's Stan Wawrinka.
Image Credit: AFP
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Fans watch the action at Melbourne Park
Image Credit: AP
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Germany’s Alexander Zverev in action against Stan Wawrinka.
Image Credit: Reuters
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Estonia's Anett Kontaveit hits a return against Romania's Simona Halep .
Image Credit: AFP
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A supporter of Spain's Garbine Muguruza cheers her on against Russia's Anastasia Pavlyuchenko.
Image Credit: AFP
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Simon Halep signs autographs after booking her place in the Australian Open semi-finals.
Image Credit: AP
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Spain's Rafael Nadal and Austria's Dominic Thiem pose for a photo prior to their men's singles quarter-final match.
Image Credit: AFP