Svitolina, who reached the French Open fourth round on Friday with a win over Anna Blinkova of Russia, refused to shake hands with her opponent and was booed by some of the fans.
"It started with the Ukrainian government that went to the meetings with the Russian government," Svitolina said.
"They (Ukraine) were against shaking the hands because they're not sharing the same values, obviously, and what the Russians are doing to our country."
I am standing for my country, doing anything possible to support men and women who are right now in the front line fighting for our land, our country," Svitolina said.
Kasatkina, who has left Russia, has been critical of the war, calling it a "nightmare" and understanding Ukrainians' decision not to shake hands.
Persons:
Roland Garros, Ukraine's Elina Svitolina, Anna Blinkova, Lisi Niesner PARIS, Elina Svitolina, Svitolina, they're, Daria Kasatkina, Karolos Grohmann, Ken Ferris
Organizations:
Thomson
Locations:
Paris, France, Ukraine, Belarusian, Russia, Moscow, Belarus, Russian, Ukrainian