Czech Republic's Barbora Krejcikova holds the French Open tennis tournament women's cup, left, and women's doubles cup during a photocall Monday, June 14, 2021 in Paris. French Open champion Barbora Krejcikova completed a rare sweep of titles at Roland Garros as she won a third women's doubles major trophy with fellow Czech teammate Katerina Siniakova on Sunday. (AP Photo/Thibault Camus)

Serbia's Novak Djokovic smiles while holding the cup after defeating Stefanos Tsitsipas of Greece during their final match of the French Open tennis tournament at the Roland Garros stadium Sunday, June 13, 2021 in Paris. Djokovic won 6-7 (6), 2-6, 6-3, 6-2, 6-4. (AP Photo/Michel Euler)

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 Wednesday, June 9, 2021 in Paris. (AP Photo/Thibault Camus)