Coco Gauff has worked on her serve and her forehand heading into the 2025 Australian Open Coco Gauff of the United States plays a forehand return during a practice session ahead of the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 9, 2025. (AP Photo/Mark Baker)
Coco Gauff of the U.S., left, shakes hands with Poland's Iga Swiatek after Gauff won their final match at the United Cup tennis tournament in Sydney, Australia, Sunday, Jan. 5, 2025. (AP Photo/Rick Rycroft)
FILE - United States' Coco Gauff kisses the trophy after defeating China's Qinwen Zheng in their women's singles final match of the WTA finals in Riyadh, Saudi Arabia, Saturday, Nov. 9, 2024. (AP Photo/File)
Coco Gauff of the United States plays a forehand return compatriot Danielle Collins during a practice session ahead of the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 9, 2025. (AP Photo/Mark Baker)
FILE - Coco Gauff of the U.S. reacts after winning against China's Qinwen Zheng in their women's singles final match of the WTA finals at the King Saud University Indoor Arena, in Riyadh, Saudi Arabia, Saturday, Nov. 9, 2024. (AP Photo, File)
Coco Gauff of the U.S., right, and teammate Taylor Fritz gesture during the award ceremony after the U.S. team defeated Poland in their final match at the United Cup tennis tournament in Sydney, Australia, Sunday, Jan. 5, 2025. (AP Photo/Rick Rycroft)
FILE - Coco Gauff of the United States returns the ball to Naomi Osaka of Japan in in a women's singles match for the China Open tennis tournament held at the National Tennis Center in Beijing, Tuesday, Oct. 1, 2024. (AP Photo/Achmad Ibrahim, File)
Coco Gauff of the U.S. hits a forehand to Czechia's Karolina Muchova in their semifinal match at the United Cup tennis tournament in Sydney, Australia, Saturday, Jan. 4, 2025. (AP Photo/Rick Rycroft)
Coco Gauff of the United States plays a backhand return compatriot Danielle Collins during a practice session ahead of the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 9, 2025. (AP Photo/Mark Baker)
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Coco Gauff of the United States plays a forehand return during a practice session ahead of the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 9, 2025. (AP Photo/Mark Baker)