Australia’s Nick Kyrgios prepares to serve against Bulgaria’s Grigor Dimitrov during their men’s singles fourth round match at the  Australian Open in Melbourne. Photograph: Saeed Khan/AFP/Getty

For all the talk of a rebooted, matured Nick Kyrgios, Sunday night’s match with the world number three Grigor Dimitrov saw the Australian decisively l(...)

 Venus  and Serena Williams: the sisters  have not played against each other since the 2015 United States Open, when Serena won, 6-2, 1-6, 6-3.  Photograph:  Clive Brunskill/Getty Images

Whatever about the outcome, all of the things you might associate with a Grand Slam final, passion, determination, aggression and a willingness to des(...)

Rafael Nadal celebrates after clinching victory against   Milos Raonic in the  Australian Open quarter-final at Melbourne Park. Photograph:  Scott Barbour/Getty Images

In what is turning into seniors’ week at the Australian Open, Rafael Nadal struck another blow against youth by defeating Milos Raonic 6-4, 7-6 (9-7),(...)

Serena Williams celebrates her win over Johanna Konta during their singles quarter-final match at the Australian Open yesterday. Photograph: Filip Singer/EPA

Serena Williams remained on course for her 23rd grand slam title by quelling the challenge of in-form Briton Johanna Konta 6-2 6-3 to reach the semi-f(...)

Rafael Nadal celebrates his victory against Gael Monfils during their men’s singles fourth round match on day eight of the Australian Open. Photograph: Saeed Khan/AFP/Getty Images

Rafael Nadal joked about giving his girlfriend a wild card to attend the Australian Open but the Spaniard played like a champion as he cruised past Ga(...)