Tennis - French Open - Roland Garros, Paris, France - May 30, 2021 Japan's Naomi Osaka in action during her first round match against Romania's Patricia Maria Tig.

Tennis - French Open - Roland Garros, Paris, France - May 30, 2021 France's Jeremy Chardy in action during his first round match against Greece's Stefanos Tsitsipas.

Tennis - French Open - Roland Garros, Paris, France - May 31, 2021 Switzerland's Roger Federer in action during his first round match against Uzbekistan's Denis Istomin.

Tennis - French Open - Roland Garros, Paris, France - May 31, 2021 Serena Williams of the U.S. reacts during her first round match against Romania's Irina-Camelia Begu.

Tennis - French Open - Roland Garros, Paris, France - May 31, 2021 Japan's Yoshihito Nishioka during his first round match against France's Jo-Wilfried Tsonga.

Tennis - French Open - Roland Garros, Paris, France - June 1, 2021 Taiwan's Liang En-shuo in action during her first round match against France's Fiona Ferro.

Tennis - French Open - Roland Garros, Paris, France - June 1, 2021 Spain's Rafael Nadal in action during his first round match against Australia's Alexei Popyrin.

Tennis - French Open - Roland Garros, Paris, France - June 1, 2021 A spectator is seen in the stand during Czech Republic's Karolina Pliskova first round match against Croatia's Donna.

Tennis - French Open - Roland Garros, Paris, France - June 1, 2021 Serbia's Novak Djokovic reacts during his first round match against Tennys Sandgren of the U.S.

Tennis - French Open - Roland Garros, Paris, France - June 1, 2021 General view of the court during the first round match between Serbia's Novak Djokovic and Tennys Sandgren of the U.S.

Jun 1, 2021; Paris, France; Coco Gauff (USA) in action during her match against Aleksandra Krunic (SRB) on day three of the French Open at Roland Garros Stadium. Mandatory Credit: Susan Mullane-USA TODAY Sports

Tennis - French Open - Roland Garros, Paris, France - May 30, 2021 Russia's Svetlana Kuznetsova reacts during her first round match against Belarus' Victoria Azarenka.

May 31, 2021; Paris, France; Iga Swiatek (POL) holds her birthday flowers and reacts to the spectators singing happy birthday to her after her match against Kaja Juvan (SLO) on day two at Roland Garros Stadium. Mandatory Credit: Susan Mullane-USA TODAY Sports

May 31, 2021; Paris, France; Marta Kostyuk (UKR) celebrates match point during her during her match against Garbine Muguruza (ESP) on day two at Roland Garros Stadium. Mandatory Credit: Susan Mullane-USA TODAY Sports

Tennis - French Open - Roland Garros, Paris, France - June 1, 2021 Czech Republic's Karolina Pliskova in action during her first round match against Croatia's Donna Vekic.

Tennis - French Open - Roland Garros, Paris, France - June 2, 2021 Germany's Alexander Zverev in action during his second round match against Russia's Roman Safiullin.

Tennis - French Open - Roland Garros, Paris, France - June 1, 2021 France's Hugo Gaston in action during his first round match against France's Richard Gasquet.

Naomi Osaka (JPN) in action during her match against Patricia Maria Tig (ROU) at Roland Garros Stadium. Mandatory Credit: Susan Mullane-USA TODAY Sports

Tennis - French Open - Roland Garros, Paris, France - May 30, 2021 Tattoo on the arm of Russia's Svetlana Kuznetsova during her first round match against Belarus' Victoria Azarenka.

May 31, 2021; Paris, France; Serena Williams (USA) in action during her match against Irina-Camelia Begu (ROU) on day two at Roland Garros Stadium. Mandatory Credit: Susan Mullane-USA TODAY Sports

Tennis - French Open - Roland Garros, Paris, France - May 31, 2021 Switzerland's Roger Federer in action during his first round match against Uzbekistan's Denis Istomin.