
Diana Shnaider was caught by surprise when she learned just a few hours before her match that she would make her WTA Finals singles debut. The Russian was called up to replace Karolina Muchova but could not turn the unexpected opportunity into a positive result, suffering a 6-2, 6-1 defeat to compatriot Mirra Andreeva.
Shnaider had almost no time to prepare for the match, having already planned a relaxed morning and not even had her rackets strung. Muchova's withdrawal suddenly changed those plans, leaving the 21-year-old rushing to get ready.
Andreeva took full advantage, winning 12 of the final 13 games to secure a dominant victory and complete an unbeaten group-stage campaign.
Speaking after the match, Shnaider explained how the unexpected call-up unfolded and reflected on the coincidence of ending her season against Andreeva, having partnered her at last year's WTA Finals.
Shnaider recalls bizarre morning before unexpected WTA Finals appearance
Shnaider explained that she and her team had already started making plans for a day away from the court after accepting that she was unlikely to feature in the singles competition.
"Yesterday, me and Sascha [Bajin, her coach] were already like, 'Okay, pity, we're not going to be playing. Let's just not practise tomorrow, take it easy and enjoy," the left-handed said during her post-match interview. "We even arranged to meet for breakfast. We didn't have any rackets strung, nothing."

Diana Shnaider after defeating Sabalenka to reach the semi-finals at Roland Garros 2026
The situation changed when Shnaider woke up at around 9:30 a.m. and started receiving notifications from the tournament supervisor about Muchova's withdrawal.
"I woke up at 9:30 just to go for breakfast, and then I saw notifications from the supervisor. Everyone was like, 'Hey, it looks like Karolina is going to retire. You're in, you're going to be playing first.' I was like, 'Oh my God, oh my God!'"
The Russian immediately contacted Sascha to figure out what they should do, with the original breakfast plans suddenly becoming a race against the clock.
"I just grabbed a bagel with cream cheese, a coffee, and quickly left. We left the hotel at around 10 a.m., already dressed for the match. I had to do some quick mobility work and get my tapes on before warming up on court for 30 minutes. I never do that because I don't like warming up that way."
There were further complications, as Shnaider had spent the week practising on a different court with different conditions. She admitted that adjusting to the playing surface added another challenge to an already difficult situation. Despite the circumstances, she was grateful to receive the opportunity, even if she acknowledged that Muchova's withdrawal was unfortunate.
Shnaider highlights unusual Andreeva coincidence after WTA Finals defeat
The identity of her opponent made the situation even more unusual. Shnaider and Andreeva had teamed up in doubles at the 2025 WTA Finals, and the Russian admitted that she had not anticipated finishing another season by facing her compatriot in singles.
"It was also crazy that I was playing Mirra. I played doubles with her at the Finals last year, and now I'm finishing my season by playing against her. Some crazy coincidences happen!" Shnaider said.
However, the circumstances meant she had little opportunity to think about the matchup before stepping onto the court. Andreeva had already defeated Elina Svitolina and Aryna Sabalenka in straight sets, establishing herself as one of the standout performers of the tournament.
"I didn't even have the opportunity to process what I was about to do or who I was going to play," Shnaider admitted. "It's never easy to play someone who has already played two matches against two top-10 players, while you go onto the court without having played a single match."
"She knows me so well. She knows what I like and what I don't like. I feel like the court and conditions suited her playing style very well. She understands what she needs to do to make me uncomfortable and, in a way, disrupt my game and my rhythm. She did that very well."
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The Russian also admitted that adjusting to Andreeva's shots on the different court was difficult, particularly when trying to find the right position to attack and defend.
Despite the disappointing scoreline, Shnaider was keen to take positives from her unexpected appearance and the season as a whole. She reached the French Open semi-finals earlier in the year before adding another title in Tokyo, giving her plenty to reflect on heading into the off-season.
"Our consistency towards the end of the season was definitely much better, so there are a lot of positives we can take from it," she said. "There are also plenty of things we know we need to work on during the pre-season. We just have to look back on this season with our heads held high, knowing what we need to do to get better."

Cristhián AvilaTennis Journalist
Cristhián Ávila is a tennis journalist based in Santiago, Chile, and has been part of the TennisUpToDate team since early 2023. He covers the ATP and WTA Tours as well as all four Grand Slams, producing breaking news, match reports, analysis, and regular liveblogs from major tournaments.
His reporting combines statistical analysis with clear explanation, helping readers understand tactical developments, player form, and broader storylines across the tour. Working fluently in both Spanish and English, Cristhián collaborates with an international editorial team and contributes to comprehensive global coverage. As part of his work, he has conducted interviews and media interactions with leading figures in the sport, including Caroline Wozniacki and John McEnroe.
In his journalism, Cristhián places strong emphasis on careful sourcing, editorial accuracy, and updating articles promptly when new, verified information becomes available. His coverage is grounded in research, context, and direct engagement with professional tennis.
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