Coco Gauff, of the United States, returns a shot from Anastasija Sevastova, of Latvia, during the Miami Open tennis tournament in Miami Gardens, Fla.
United States' Coco Gauff makes a forehand return to Switzerland's Jil Teichmann during their first round match at the Australian Open tennis championship in Melbourne, Australia.
United States' Coco Gauff serves to Switzerland's Jil Teichmann during their first round match at the Australian Open tennis championship in Melbourne, Australia.
United States' Coco Gauff makes a forehand return to to Britain's Katie Boulter during a tuneup tournament ahead of the Australian Open tennis championships in Melbourne, Australia
From left, Roger Federer of Switzerland, Nick Kyrgios of Australia, Naomi Osaka of Japan, Alexander Zverev, Dominic Thiem of Austria, Serena Williams of the United States, Caroline...
Coco Gauff wipes away tears while talking to Naomi Osaka, of Japan, after Osaka defeated Gauff during the third round of the U.S. Open tennis tournament in New York.
World No. 1 Naomi Osaka, 21, won 6-3, 6-0 against Coco Gauff.
