Winner Poland's Iga Swiatek, right, and Ukraine's Elina Svitolina shake hands after their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Poland's Iga Swiatek celebrates as she won the quarterfinal match of the French Tennis Open against Ukraine's Elina Svitolina at the Roland-Garros stadium in Paris.

Ukraine's Elina Svitolina reacts as she plays against Poland's Iga Swiatek during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Poland's Iga Swiatek plays a shot against Ukraine's Elina Svitolina during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Ukraine's Elina Svitolina plays a shot against Poland's Iga Swiatek during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Poland's Iga Swiatek plays a shot against Ukraine's Elina Svitolina during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Referees are reflected in a glass as Poland's Iga Swiatek prepares to serve Ukraine's Elina Svitolina during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Ukraine's Elina Svitolina plays a shot against Poland's Iga Swiatek during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Poland's Iga Swiatek serves against Ukraine's Elina Svitolina during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.

Ukraine's Elina Svitolina plays a shot against Poland's Iga Swiatek during their quarterfinal match of the French Tennis Open at the Roland-Garros stadium in Paris.