Serena Williams is  now just three grand slams short of Steffi Graf’s record after she beat Maria Shrapova in straight sets to win her sixth Australian Open title. (Photo by Clive Brunskill/Getty Images)

Serena Williams extended her winning streak against Maria Sharapova to 16 matches to claim a 19th grand slam title in the Australian Open on Saturday.(...)

Serena Williams (right) shakes hands with Dominika Cibulkova after winning their women’s singles quarter-final in Melbourne yesterday. Photograph: Reuters/Athit Perawongmetha

Serena Williams moved one match closer to making more tennis history at the Australian Open, but her bigger struggle might be just getting out of bed(...)

Stan Wawrinka  celebrates after defeating Kei Nishikori to progress to the semi-finals of the Australian Open. (Photograph: REUTERS/Carlos Barria)

Men’s champion Stan Wawrinka avenged a tough defeat to Kei Nishikori at last year’s U.S. Open while an ill Serena Williams remained on track for her (...)

Venus Williams  hits a return against  Agnieszka Radwanska during their  match at the  Australian Open in Melbourne. Photograph:  Mal Fairclough/AFP/Getty Images

Venus Williams will face a player she inspired to take up tennis after reaching her first Grand Slam quarter-final since 2010 in the Australian Open. (...)

Novak Djokovic stretches to hit a backhand return during his match against    Gilles Muller  at  the Australian Open in  Melbourne. Photograph:  Lukas Coch/EPA

Novak Djokovic ensured seven of the top eight seeds reached the quarter-finals of the Australian Open after overcoming Luxembourg’s Gilles Muller in M(...)

Madison Keys of the USA plays a forehand shot in her third-round match against Petra Kvitova of the Czech Republic at the Australian Open in Melbourne. Photograph: Michael Dodge/Getty Images

American teenager Madison Keys toppled fourth seed Petra Kvitova 6-4 7-5 in an impressive display of clean hitting to reach the fourth round of the Au(...)

Andy Murray  reacts during his US Open match against  Russia’s Andrey Kuznetsov. Photograph: Eduardo Munoz/Reuters

Andy Murray had another frustrating afternoon on the Louis Armstrong Stadium court but did enough to defeat Andrey Kuznetsov and reach the fourth roun(...)

Laura Robson  hits a return to Mariana Duque-Marino of Colombia during their women’s singles tennis match at the Wimbledon Tennis Championships. Photograph: Stefan Wermuth /Reuters

Laura Robson can thank Andy Murray for shouldering the lion’s share of expectation. As the more celebrated names have fallen, Murray’s chances of meet(...)