Nick Kyrgios has bowed out amid ugly scenes at a third tournament in a row, losing to Reilly Opelka in their semi-final at the US Men's Clay Court Championship.
Australian teenager Valentino Guseli is setting no limits on how high he can go in the Olympic final of the men's halfpipe after qualifying in fifth place.
The sunny climes of Brisbane - and about a 50 degree temperature swing from icy Beijing - is where mogul skier Jakara Anthony honed her Olympic gold medal-winning run.
Laura Peel says its an honour to carry the Australian flag in the Olympics opening ceremony and won't let the pressure affect her push for an aerials medal.
Newly crowned Australian Open men's champion Rafael Nadal thinks he will have to secure more than 21 grand slams to become the most decorated in tennis.
Quarterback Tom Brady, who won seven Superbowl titles with New England Patriots and Tampa Bay Buccaneers, has announced his retirement at the age of 44.
Speculation over the NFL future of Tom Brady will intensify after the Tampa Bay Bucaneers' 30-27 loss to the Los Angeles Rams in their NFC divisional playoff.
John Madden, the Super Bowl-winning coach of the Oakland Raiders who became one of America's best-known TV sports announcers, has died at the age of 85.
Canberra's Patty Mills has stepped up with a monster performance as his under-strength Brooklyn Nets overcame the Toronto Raptors 131-129 in an NBA overtime thriller.
Max Verstappen has won the Abu Dhabi GP and the F1 world title but his last-lap win over Lewis Hamilton was only sealed after Mercedes' protests were rejected.
A Women's Cricket World Cup qualifying event was cancelled due to the new COVID-19 variant while a football match in Portugal was abandoned in amazing scenes.