Marta Kostyuk praises Daria Kasatkina ahead of French Open semifinal against Russia's Mirra Andreeva

Marta Kostyuk has reached her first grand slam semifinal with an emotional victory over fellow Ukrainian Elina Svitolina, then raised the temperature for her last-four tie with Mirra Andreeva by castigating those Russian players who have kept silent over the war between the nations.

Citing Daria Kasatkina, who switched her allegiance from Russia to Australia last year, she said she no longer agreed with the argument that Russian athletes ⁠remained silent because of possible repercussions at home.

"There is a way if you don't agree," Kostyuk said.

"I know some people who have left Russia the moment the war began, who sold all their business, who left everything behind because they just don't agree with what their country is doing to other people.

"I don't think [Daria] lives in Russia anyways, but the majority of players don't live in Russia. There is nothing that's ‌stopping you if this is something you don't believe in.

"After four years, I think they've made it very clear whose side they are on."

Kostyuk spoke in response to being asked about Russian players, including Andreeva, who have said they focus only on the match and avoid political discussion.

Andreeva was asked after her 6-0 6-3 win over Romania's ‌Sorana Cîrstea about the challenges of playing a Ukrainian in wartime (without knowing then whether it would be Kostyuk or Svitolina) and replied: "For me it doesn't matter who I play.

"I really try to play against the ball that is coming at me. Usually it doesn't matter to me who I'm playing against, so I'm trying to really focus on the game and on the game plan."

Kostyuk said she did not think staying silent was acceptable.

"They are all grown-ups. They know what they're talking about. They know what's going on. They ‌have phones. They have Instagram. They have news," Kostyuk said.

"I wish there was some more clear stance on what's going on, especially when your country is killing other people."

Kostyuk, the best player on clay this season, leads Andreeva 2-0 on the tour; the second win in the Madrid final a month ago.

Kostyuk did not take a pre-match photo with Andreeva or shake hands at the net after that match, following protocol for Ukrainians with opponents from Russia and its ally Belarus since the war started four years ago.

Kostyuk beat Svitolina 6-3, 2-6, 6-2 and dedicated the win to her compatriots after a night in which Russia launched hundreds of drones and dozens of missiles against Kyiv and other Ukrainian cities, killing at least 18 civilians and wounding more than 100 others, authorities said.

Kostyuk began the fortnight in tears on court, revealing her family home in Kyiv had almost been hit by a Russian missile, and she was initially too emotional to speak after the win over Svitolina.

"We had a very difficult night again in Ukraine, especially in Kyiv, so many people dead," Kostyuk said after she composed herself.

"I want to give this match to Ukrainian people and to their resilience. Slava Ukraini! [Glory to Ukraine!]"

"I found out early in the morning. I have a couple of friends that told me about it, who are there," Svitolina said.

"Just very sad that we all have to really put up with this heaviness and pain every single day, and scared moments not knowing what's going to bring the next day."

Andreeva, 19, won her match in less than an hour. It will be her second semifinal at Roland-Garros, having lost to Jasmine Paolini two years ago.

Zverev, Mensik into men's semi-finals

World number three Alexander Zverev has not won a title in 2026, but the German remains on track to break his duck in a major way after cruising through to the men's semifinals.

The 2024 runner-up, who has never won a major singles title, beat rising Spanish player Rafael Jodar 7-6 (7/3), 6-1, 6-3.

With Carlos Alcaraz missing the French Open because of a wrist injury and Jannik Sinner eliminated in the second round followed by Novak Djokovic in the third round, the second-seeded Zverev's chances have greatly improved at Roland Garros.

"I feel like the draw opened up a lot on the top half," the 29-year-old Zverev said.

"Of course, with João Fonseca beating Djokovic, it's a big match that opened up the draw."

Zverev's semifinal opponent will be 20-year-old Jakub Menšík, who beat the 19-year-old Brazilian Fonseca 6-4, 6-3, 7-6 (7/3).

The 26th-seeded Menšík, of the Czech Republic, reached the fourth round of the Australian Open this year and won a Masters title last year when he upset Djokovic in the Miami Open final.

"We have fantastic players that are young on the tour right now; we have a lot of potential," Zverev said. "I have to trust myself, trust my game."

AAP/AP