Ukraine's Marta Kostyuk reacts to a point against US Katie Volynets during their women's singles match on day 4 of the French Open tennis tournament at the Roland-Garros Complex in Paris on May 27, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

Ukraine's Marta Kostyuk reacts to a point against US Katie Volynets during their women's singles match on day 4 of the French Open tennis tournament at the Roland-Garros Complex in Paris on May 27, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

A staff sprays spectators with water as they attend Ukraine's Marta Kostyuk and US Katie Volynets' women's singles match on day 4 of the French Open tennis tournament at the Roland-Garros Complex in Paris on May 27, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

US Katie Volynets serves to Ukraine's Marta Kostyuk during their women's singles match on day 4 of the French Open tennis tournament at the Roland-Garros Complex in Paris on May 27, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

Ukraine's Marta Kostyuk plays a backhand return to US Katie Volynets during their women's singles match on day 4 of the French Open tennis tournament at the Roland-Garros Complex in Paris on May 27, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

Ukraine's Marta Kostyuk plays a forehand return to US Katie Volynets during their women's singles match on day 4 of the French Open tennis tournament at the Roland-Garros Complex in Paris on May 27, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

Ukraine's Marta Kostyuk reacts after a point as she plays against US Katie Volynets during their women's singles match on day 4 of the French Open tennis tournament at the Roland-Garros Complex in Paris on May 27, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)

Ukraine's Marta Kostyuk plays a forehand return to US Katie Volynets during their women's singles match on day 4 of the French Open tennis tournament at the Roland-Garros Complex in Paris on May 27, 2026. (Photo by Dimitar DILKOFF / AFP via Getty Images)