A tearful Angelique Kerber stunned an errant Serena Williams to win the Australian Open on Saturday and thwart the American top seed's bid to equal Steffi Graf's Open-era record of 22 Grand Slam titles.

Martina Hingis and Sania Mirza added the Australian Open title Friday to their 2015 US Open and Wimbledon crowns as the rampantly successful pair maintained their dominance of women's doubles.

Andy Murray twice fought back from a set down to win a gruelling five-set semifinal against an injury-hampered Milos Raonic and set up his latest Australian Open final against five-time champion Novak Djokovic on Friday.

Top seed Novak Djokovic saw off a thrilling fight-back by his great rival Roger Federer to reach his sixth Australian Open final and fifth consecutive Grand Slam title match on Thursday.

Andy Murray set up an Australian Open semifinal against the much-improved Milos Raonic on Wednesday when he weathered a fierce attack by David Ferrer on a day of rare success for Britain.

Novak Djokovic hammered an off-key Kei Nishikori and Roger Federer put on a masterclass against Tomas Berdych as they set up a dream semifinal at the Australian Open on Tuesday.

Milos Raonic relies on a quiet head on his shoulders during times of trouble, as was the case when beating Stanislas Wawrinka in the Australian Open fourth round yesterday.

Novak Djokovic dished up 100 unforced errors in a five-set struggle with Gilles Simon on Sunday as Roger Federer roared into the Australian Open quarter-finals with ruthless efficiency.

World number one and defending champion Serena Williams will face Maria Sharapova in the Australian Open quarter-final.

A mid-match medical emergency involving Ana Ivanovic's coach -- who is also the father of Andy Murray's heavily pregnant wife -- caused concern and disruption on a dramatic evening at the Australian Open on Saturday.

Novak Djokovic underlined his supremacy in men's tennis on Friday as he marched unstoppably into the Australian Open fourth round -- along with Serena Williams, who raced through in just 44 minutes.

Former French Open champion Ana Ivanovic was shaken up when a spectator was injured falling down the stairs on Rod Laver Arena but recovered her composure to ease into the third round at the Australian Open on Thursday.

Novak Djokovic has denied an Italian media report he deliberately lost a match in 2007 that has been linked to a wider scandal involving alleged corruption in tennis.

Former world number one Lleyton Hewitt slammed match-fixing allegations as an "absolute farce" on Thursday as his emotional retirement at the Australian Open was tainted by the corruption claims which have rocked tennis. Hewitt, after going down fighting to David Ferrer at his farewell tournament, rounded on an anonymous online blog linking his name to the explosive report which has overshadowed the year's first Grand Slam.

Novak Djokovic has denied "absurd" allegations in an Italian newspaper that he "wanted to lose" a match at the Paris Masters in 2007.

Britain's Johanna Konta said she wasn't tempted by a move back to Australia after shocking Venus Williams to reach the second round. Konta, who was born in

Defending champions Novak Djokovic and Serena Williams stormed into the Australian Open third round on Wednesday as tennis authorities came under fire over their efforts to fight match-fixing.

Rafael Nadal and Simona Halep were sent crashing out of the Australian Open first round on Tuesday as a dramatic day of upsets shifted the landscape of the year's first Grand Slam.

Rafa Nadal was heading back to the drawing board on Tuesday after another startling early loss at a Grand Slam deflated his early-season optimism and left him questioning his strategy.

More players reveal match-fixing approaches on Tuesday as the Australian Open Grand Slam tournament came under close scrutiny following claims that corruption in tennis was widespread.