Marcos Giron of the U.S. gestures as he walks from Rod Laver Arena following his third round loss to Jannik Sinner of Italy at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 18, 2025. (AP Photo/Asanka Brendon Ratnayake)

Jannik Sinner of Italy plays a backhand return to Marcos Giron of the U.S. during their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 18, 2025. (AP Photo/Asanka Brendon Ratnayake)