Wimbledon champion Marketa Vondrousova suffered an early exit from the Australian Open, losing to Ukrainian qualifier Dayana Yastremska 6-1, 6-2.
The Czech seventh seed, dealing with a hip injury that caused her withdrawal from the Adelaide International, faced challenges in her court movement.
Yastremska, ranked 93rd, dominated the match, securing control in just 31 minutes in the first set and breaking Vondrousova at the beginning of the second set.
Yastremska expressed her satisfaction with the game, citing nerves but emphasizing her enjoyment on the court.
The Ukrainian player, who received significant support from the crowd, claimed her fourth career win against a top-10 player.
Yastremska's next opponent will be France's Varvara Gracheva, an unseeded player, as she aims to progress further in the tournament after her third-round appearance in 2019 at Melbourne Park.