Jannik Sinner retained his Australian Open title with an emphatic 6-3 7-6(4) 6-3 win over Alexander Zverev, breaking new ground for Italian tennis and leaving his German rival smarting after a third Grand Slam final defeat.

Novak Djokovic rounded on his criticsthe day after retiring injured in his Australian Open semi-final after the first set against Alexander Zverev to boos from the crowd at the tournament he has won 10 times.

An inspired Madison Keys ripped up the script with a bold and brilliant performance to end Aryna Sabalenka’s Australian Open reign and win her maiden Grand Slam trophy.

Ben Shelton said uncharacteristic errors at crucial moments had proved costly during his Australian Open semi-final loss against defending champion Jannik Sinner, after the American squandered the chance to go a set up early in the match.

Novak Djokovic and Andy Murray haven’t decided whether to continue their player-coach partnership.

Novak Djokovic retired injured after losing the first set 7-6(5) against Alex Zverev on Friday to put the German through to his first Australian Open final.

Five-times Grand Slam champion Iga Swiatek’s hopes of reaching a first Australian Open final were dashed by American Madison Keys on but the Pole said she was still young and would come back stronger next year.

As Paula Badosa watched Aryna Sabalenka winners whizzing by her from all angles, it was game over for the Spaniard in the Australian Open semi-finals as she fell to an inspired opponent producing “PlayStation” tennis.

Iga Swiatek booked her second Australian Open semi-final with another spectacular display on Wednesday while Americans reached the last four of the men’s and women’s singles at Melbourne Park for the first time in 16 years.

Australian Open semi-finalist Ben Shelton has taken the Grand Slam’s on-court interviewers to task for being “disrespectful” to players.

Defending champion Jannik Sinner dismissed eighth seed Alex de Minaur 6-3 6-2 6-1 to reach the Australian Open semi-finals and extend the country’s decades-long wait for another homegrown singles winner at the Grand Slam yesterday.

Paula Badosa and Madison Keys will be out to prevent a dream Australian Open final when they face Aryna Sabalenka and Iga Swiatek, respectively, in Thursday’s semi-finals at Melbourne Park.