Novak Djokovic fends off Alex Zverev to reach the semifinals for a ninth time, Serena Williams produces her best match of the tournament against Simona Halep, Naomi Osaka overpowers Hsieh Su-Wei, and Aslan Karatsev becomes the first qualifier in 43 years to reach the last four of a major, on a historic Day 9 of the Australian Open.

Novak Djokovic fends off Alex Zverev to reach the semifinals for a ninth time, Serena Williams produces her best match of the tournament against Simona Halep, Naomi Osaka overpowers Hsieh Su-Wei, and Aslan Karatsev becomes the first qualifier in 43 years to reach the last four of a major, on a historic Day 9 of the Australian Open.

Stay up to date with the Australian Open in less than 30 minutes a day! And follow the tours through the year, with coverage of all the majors and the Laver Cup.

Stay up to date with the Australian Open in less than 30 minutes a day! And follow the tours through the year, with coverage of all the majors and the Laver Cup.

The AO Show

The AO Show is the podcast for tennis fans in a hurry, with half-hour episodes every week! During the Australian Open, catch up on all the biggest stories every day of the main draw. Throughout the year, stay up to date with the latest tennis news and views every week.

The AO Show is the podcast for tennis fans in a hurry, with half-hour episodes every week! During the Australian Open, catch up on all the biggest stories every day of the main draw. Throughout the year, stay up to date with the latest tennis news and views every week.

Day 9: Djokovic and Serena semifinals-bound, Aslan roars into last four

Darren Cahill has been crowned Coach of the Year at the 2023 ATP Awards, along with his colleague Simone Vagnozzi. Together, they coach Jannik Sinner, who this year won four titles, including his first Masters 1000 title, was runner-up at the ATP Finals, and finished the year as the World No.4. Previously, Cahill has worked with the likes of Lleyton Hewitt, Andre Agassi and Simon Halep. But, as he explained, producing a Grand Slam champion takes a lot more than it might appear on the outside.

Darren Cahill has been crowned Coach of the Year at the 2023 ATP Awards, along with his colleague Simone Vagnozzi. Together, they coach Jannik Sinner, who this year won four titles, including his first Masters 1000 title, was runner-up at the ATP Finals, and finished the year as the World No.4. Previously, Cahill has worked with the likes of Lleyton Hewitt, Andre Agassi and Simon Halep. But, as he explained, producing a Grand Slam champion takes a lot more than it might appear on the outside.

Bonus: Darren Cahill on making a Grand Slam champion

One month out from the Australian Open, tournament director Craig Tiley gives a sneak peek of some exciting changes in store for AO24, newly-crowned Newcombe Medallist Alex de Minaur is predicting even bigger things to come next season, plus Stefanos Tsitsipas explains why he considers the AO his 'home Slam' and why defending champion Novak Djokovic still poses a problem for the next generation of Grand Slam contenders.

One month out from the Australian Open, tournament director Craig Tiley gives a sneak peek of some exciting changes in store for AO24, newly-crowned Newcombe Medallist Alex de Minaur is predicting even bigger things to come next season, plus Stefanos Tsitsipas explains why he considers the AO his 'home Slam' and why defending champion Novak Djokovic still poses a problem for the next generation of Grand Slam contenders.

Demon's second 'Newk' "just the beginning", Tiley teases AO24, Stef’s ‘home Slam’

Rafael Nadal is set to make his long-awaited return to tennis at the Brisbane International before returning to Melbourne for what could be his final Australian Open, Caroline Wozniacki has been granted a wildcard for the first Grand Slam of the year — the 2018 women's champion speaks exclusively to The AO Show about her fond relationship with the tournament, her fans and why she can't wait to be back, plus Taylor Fritz reveals his plans to spearhead Team USA to back-to-back glory during the second edition of the United Cup.

Rafael Nadal is set to make his long-awaited return to tennis at the Brisbane International before returning to Melbourne for what could be his final Australian Open, Caroline Wozniacki has been granted a wildcard for the first Grand Slam of the year — the 2018 women's champion speaks exclusively to The AO Show about her fond relationship with the tournament, her fans and why she can't wait to be back, plus Taylor Fritz reveals his plans to spearhead Team USA to back-to-back glory during the second edition of the United Cup.

Day 9: Djokovic and Serena semifinals-bound, Aslan roars into last four

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