Osaka broke in the first game of the decider and never trailed thereafter, going on to win it, 6-4. (Getty)
January 21, 2019
Relive the best action as the quarterfinalists were determined in Melbourne.
Serena Williams
January 20, 2019
All the key facts and talking points as fourth-round action continues at the first Grand Slam of the season.
Petra Kvitova (Getty Images)
January 20, 2019
Two-time Wimbledon champion Petra Kvitova drew from her long experience to defeat American youngster Amanda Anisimova and reach the Australian Open quarterfinals.
Petra Kvitova
January 19, 2019
All the key facts and talking points as the second week of the first Slam of 2019 gets under way.
Angelique Kerber - Australian Open 2019 - Getty
January 19, 2019
Maria Sharapova, Petra Kvitova and Sloane Stephens take to the court on Sunday as the Australian Open reaches its halfway stage.
Petra Kvitova, 2019 Australian Open (Getty)
January 18, 2019
Two-time Wimbledon champion Petra Kvitova is into the second week of a Grand Slam event for the first time since the 2017 US Open, after easing past Belinda Bencic in the third round of the 2019 Australian Open.
Simona Halep was forced into another lengthy match but battle back to beat Sofia Kenin, 6-3, 6-7(5), 6-4. (Getty)
January 17, 2019
Some of the finest photos from the round of 64 in Melbourne.
Caroline Wozniacki - Australian Open 2019 - Getty
January 17, 2019
All the key facts and talking points as third-round play commences at the first Grand Slam of the season.
Petra Kvitova - Australian Open 2019 - Getty
January 16, 2019
Petra Kvitova extended her winning streak to seven to make the Australian Open third round for the first time in four years, defeating Irina-Camelia Begu in straight sets.
Angelique Kerber - Australian Open 2019 - Getty
January 15, 2019
All the key facts and talking points as second-round play gets under way at the first Grand Slam of 2019.
Top seed Simona Halep was made to work before beating Kaia Kanepi in three sets (Getty)
January 14, 2019
All the best photos from the opening round in Melbourne.
Petra Kvitova - Sydney 2019 - Getty
January 14, 2019
Victory at the Sydney International has boosted Petra Kvitova in the WTA Rankings, while a maiden title for Sofia Kenin at the Hobart International has resulted in a new career high.