Jannik Sinner will part ways with veteran coach Darren Cahill after this season, the world's top-ranked tennis player revealed Thursday in Melbourne, where Sinner advanced to the third round of the Australian Open.

In April, the world’s best male player, the Italian Jannik Sinner, will swap the blue hues of Rod Laver Arena for a more confronting court; his doping appeal case against the International Tennis Integrity Agency, the World Anti-Doping Agency and the International Tennis Federation, is listed for two days in the Court of Arbitration for Sport.

By Nick Mulvenney MELBOURNE (Reuters) -Defending champion Jannik Sinner recovered his composure after an early setback to storm into the third round of the Australian Open on Thursday but Brazilian teenager Joao Fonseca's first Grand Slam campaign came to an end in the second round.

The two best men's players in the world are reconfiguring the sport before their opponents' eyes. They don't know what to do about it

Defending champion Jannik Sinner lost his first set since October but recovered to beat Tristan Schoolkate and reach the third round of the Australian Open.

Iga Swiatek, Jannik Sinner, Jasmine Paolini, Elena Rybakina and N Sriram Balaji are amongst the big players who will be in action on Day 7 of the hard court major at Melbourne Park.

FILE - Italy’s Jannik Sinner returns the ball to Netherlands’ Tallon Griekspoor during the Davis Cup final tennis match between Netherlands and Italy at the Martin Carpena Sports Hall in Malaga, southern Spain, Sunday, Nov. 24, 2024. (AP Photo/Manu Fernandez, File)

MELBOURNE, Australia — Defending champion Jannik Sinner’s consecutive-sets streak ended in the second round of the Australian Open, but he advanced with a 4-6, 6-4, 6-1, 6-3 victory over wild-card entry Tristan Schoolkate.