Mirra Andreeva needed just 62 minutes to sweep past Aryna Sabalenka and reach the WTA Finals semi-finals, delivering the World No 2 her first bagel since February 2024 in the process.

The 19-year-old, who is ranked World No 3 and is the reigning French Open champion, was making her debut at the season-ending tournament and has sealed top spot of Group 2.

Her 6-4 6-0 victory came after Elina Svitolina had earlier fought back from a set down to beat Karolina Muchova 3-6 6-2 6-2, a result that kept the Ukrainian's hopes alive and ended Muchova's chances of reaching the last four.

Svitolina and Sabalenka will now meet in Friday's final group match, with the remaining semi-final place at stake.

Sabalenka began the stronger of the two in the evening's contest, breaking Andreeva in the fourth game to lead 4-1 in a closely fought opening set.

Andreeva hit back at once, taking three games in a row to draw level at 4-4.

She then broke Sabalenka once more and served out the set.

The Russian carried that momentum into the second set, capitalising on Sabalenka's errors to break early and race 3-0 ahead.

Sabalenka would not win another game, as Andreeva closed out a dominant victory in which she hit 16 winners and made only six unforced errors.

"I'm even happier than I was after my first match. I feel like I could play another two matches. I'm so full of energy. I'm so pumped up. I'm so happy," Andreeva said.

The earlier match between Svitolina and Muchova was their third consecutive meeting to go the distance.

Both women had lost their opening matches in straight sets, and it was Muchova who edged a competitive first set.

Svitolina raised her level from there, breaking twice in the second set and serving it out to force a decider, before carrying that momentum into the final set with two more breaks of serve.

Svitolina, who won the WTA Finals in 2018, said: "I got a bit angry at myself. I tried to hit the ball. Tried to let everything out. HappyI could win those two sets and get a win here. I didn't really expect it to be fair.

“It means the world to me (to be here). At the beginning ⁠of the year I tried to set a goal for myself to finish here... For me it’s just an ‌amazing thing. After pregnancy, ​surgery, injuries on the way, it wasn’t ‌easy. I’m very pleased and really proud ​of the effort."