Coco Gauff of the U.S. plays during the women's doubles third round match against Russia's Veronika Kudermetova and Elena Vesnina on day eight of the Wimbledon Tennis Championships...
Germany's Angelique Kerber, left, greets Coco Gauff of the U.S. after winning the women's singles fourth round match on day seven of the Wimbledon Tennis Championships in London.
Coco Gauff of the US celebrates winning the first set against Slovenia's Kaja Juvan during the women's singles third round match on day six of the Wimbledon Tennis Championships in...
Coco Gauff of the US plays a return to Russia's Elena Vesnina during the women's singles second round match on day four of the Wimbledon Tennis Championships in London.
Coco Gauff of the US plays a return to Britain's Francesca Jones during the women's singles first round match on day two of the Wimbledon Tennis Championships in London.
Coco Gauff of the US celebrates winning the women's singles first round match against Britain's Francesca Jones on day two of the Wimbledon Tennis Championships in London.
United States's Coco Gauff returns the ball to Czech Republic's Barbora Krejcikova during their quarterfinal match of the French Open tennis tournament at the Roland Garros stadium...
United States's Coco Gauff plays a return to China's Qiang Wang during their second round match on day 5, of the French Open tennis tournament at Roland Garros in Paris, France.
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.
