MELBOURNE - Nick Kyrgios and Thanasi Kokkinakis's bid to repeat their Australian Open doubles triumph of 2022 ended in retirement in on Thursday when the latter was unable to continue their first-round tie.

Australian tennis star Thanasi Kokkinakis has stunned his opponent with an amazing act of sportsmanship at a critical moment of their second-round Australian Open clash. British No.15 seed Jack Draper was serving at two sets to one down, and trailing by a break in the fourth when he was about to be denied a certain point after a long rally.

A seething Thanasi Kokkinakis has described his ongoing pectoral muscle issues as “physical and mental torture” after losing a five-set epic at the Australian Open.

Both Kyrgios (strained abdominal muscle) and Kokkinakis (right shoulder trouble) came into the match dealing with physical issues.

Thanasi Kokkinakis says a doctor advised him not to play before he and Nick Kyrgios retired injured in the men doubles first round at the Australian Open.

Carlos Alcarez seeks a spot in the quarterfinal round of the 2025 Australian Open Tennis Championships when he battles No. 15 Jack Draper in Saturday’s fourth round of men’s singles.

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Marathon man Jack Draper says Carlos Alcaraz will have a battle on his hands when they meet in the Australian Open last 16, with the Briton showing remarkable staying power to set up the clash.

The 15th seed will face home favourite Kokkinakis on Wednesday, while Jacob Fearnley, Jodie Burrage and Harriet Dart are also in second-round action.

A furious Thanasi Kokkinakis says his "future is looking bleak" after an ongoing pectoral muscle issue cut him down in a shattering Australian Open loss.