Russian teenager Mirra Andreeva has beaten the world's best players to move up to world No 7 but on Wednesday she beat a player who had got the better of her for years - her elder sister Erika.
The Andreeva sisters were drawn against each other at the Stuttgart Open but any hopes of a witnessing an absorbing sibling rivalry were put to bed when Erika, 20, was forced to retire with a knee injury while trailing 6-2 1-0.
"She showed me the way" 🥹💚
— wta (@WTA) April 16, 2025
Unfortunately, Erika Andreeva is forced to retire due to injury sending Mirra Andreeva into the Round of 16.#PorscheTennis pic.twitter.com/CFEAE8X8FC
Mirra had beaten the likes of world No 1 and two Aryna Sabalenka and Iga Swiatek en route to the Indian Wells title last month, but the 17-year-old said it was tougher to focus when her elder sister is on the other side of the net.
"For me, 75 per cent-80 per cent is about my mental preparation, because you're also not just focusing on yourself and you're not focusing on how to beat her, but you're also focusing (on her) - does she feel good? I don't know," Mirra told reporters.
"I wonder, how does she feel? What are we going to do after the match? How is it going to be? All those thoughts.
"Me, I don't just focus on myself, but I also focus on kind of paying more attention to her. This makes the match more difficult for me... To really just focus on myself, it's almost impossible when I play against her."
Andreeva vs. Andreeva 👀
— wta (@WTA) April 16, 2025
A special moment in Stuttgart as sisters Mirra and Erika Andreeva face off in Round 1!#PorscheTennis pic.twitter.com/I6HB08NjSz
The two had met once before in Wuhan last year where Erika - who is now 90 rungs below Mirra in the rankings - triumphed in straight sets.
Mirra said she knew Erika was struggling with her knee as they are sharing a room, but also revelled in beating her for the first time - even though the victory did not come under ideal circumstances.
"We played a couple of times on the practices when we were younger, and actually, until Wuhan last year, we never ever played an official match. So we were always playing a couple of games on the practices or a couple of tiebreaks," Mirra said.
"But most of the time, of course she has, like a 90 per cent win (record) against me and this is actually the first time I really won a set against her.
"I just know that, of course, if she would feel her 100 per cent, the score would be completely different and the match would be different as well. But I'm sure that we have a lot of time to play and to show the great level of tennis."
She will next play compatriot Ekaterina Alexandrova in the last 16.