Watch Aryna Sabalenka get down with a victory dance after her first round win over Sloane Stephens at the Australian Open.

Defending champion Aryna Sabalenka extended her Australian Open winning streak to 15 matches on a rain-soaked opening day at Melbourne Park. Less than an hour of play was possible on the outside courts before a huge thunderstorm hit Melbourne Park, sending spectators running for cover and causing a delay of more than six hours.

The Belarusian has now won her last 17 first-round matches at grand slams, last falling at the first hurdle at a major against Carla Suarez Navarro at the 2020 Australian Open

Aryna Sabalenka faced a former champion and some of her own demons in what proved to be a first-round match that was trickier than she and most observers expected.

Sabalenka will soon embark on her quest for three consecutive titles at the Australian Open. To highlight that exciting story, Nike dropped an advertisement that is already an instant classic. Check out the 40-second Instagram video below.

The first round of the Australian Open begins in Melbourne on Sunday, with the world's top players competing for glory in the year's first Grand Slam. Aryna Sabalenka, who is going for a third straight title at Melbourne Park,

Belarus' Aryna Sabalenka begins her quest for a third consecutive Australian Open women's singles title on Sunday's opening day of play.