Unstoppable Serena Williams zeroed in on a record-breaking 23rd Grand Slam title Thursday by setting up an Australian Open final against her older sister Venus, as the siblings' dream came true.

Barcelona great Xavi Hernandez has agreed a year's extension to his contract with Qatar's Al Sadd, according to a statement posted on the club's website on Thursday.

Arsene Wenger has defended Granit Xhaka after the Arsenal midfielder was spoken to by police over an allegation of racial abuse just days after being sent off for the second time this season.

Roger Federer admitted medical timeouts were "more mental than anything" after he went off for treatment at a key moment in his Australian Open semi-final with Stan Wawrinka on Thursday.

LeBron James has vented his frustration with the Cleveland Cavaliers' threadbare playing resources following the team's latest defeat.

The Cavaliers slumped to a 124-122 loss against New Orleans on Monday, despite a triple double from James and a 49-point display from Kyrie Irving.

America's Williams sisters can write another chapter in their eventful family history as they attempt to set up their ninth Grand Slam final, eight years after the last, at the Australian Open on Thursday.

Barcelona boss Luis Enrique again avoided questions over his future on Wednesday as speculation grows that he could walk away from the Spanish champions at the end of the season.

Rafael Nadal edged closer to a much-anticipated Australian Open final with his great rival Roger Federer after marching into the semi-finals on Wednesday.

The 14-time Grand Slam champion was too powerful for injury-hit world number three Milos Raonic, winning 6-4, 7-6 (9/7), 6-4 in two hours 44 minutes.

Roger Federer was just one step away from his first Grand Slam final in 18 months Tuesday after he demolished giant-killer Mischa Zverev to set up an Australian Open semi-final with Stan Wawrinka.

Algeria's Belgian coach Georges Leekens quit Tuesday after the side crashed out of the Africa Cup of Nations.