INDIAN WELLS, California — World number three Mirra Andreeva booked her place in the semifinals of the WTA Finals with a 6-4 6-0 win over Aryna Sabalenka on Wednesday, ​while Elina Svitolina battled back to beat Karolina Muchova and keep her hopes alive.

Andreeva, ‌the 19-year-old French Open champion, won her second straight Group 2 match and advanced as group winner after Svitolina earlier defeated Muchova 3-6 6-2 6-2.

The result eliminated Muchova from semifinal contention, while Svitolina will face Sabalenka in Friday's ​final group match with the remaining place in the last four at stake.

Sabalenka, the world ​number two and US Open runner-up, made the stronger start and broke Andreeva ⁠in the fourth game of a closely fought opening set to move 3-1 ahead.

Andreeva responded immediately, ​however, winning three consecutive games to draw level at 4-4 before breaking Sabalenka again and serving out ​the set.

The Russian maintained the momentum in the second set, capitalizing on Sabalenka's errors to break early and race into a 3-0 lead.

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Andreeva did not allow Sabalenka another game, sealing a dominant victory on her WTA Finals debut, in ​just 62 minutes, netting 16 winners and making 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.

Earlier, Svitolina recovered from a set down to overcome Muchova in their third consecutive meeting to go the distance.

Both players had lost their opening matches in straight sets, but Muchova edged a competitive first set before Svitolina raised her level.

The Ukrainian broke twice in the ​second set and served ​it out to force ⁠a decider, before carrying that momentum into the final set with another two breaks of serve.

"I got a bit angry at myself. I tried to ​hit the ball. Tried to let everything out. Happy I could win ​those two ⁠sets and get a win here. I didn’t really expect it to be fair,” Svitolina said.

“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,” added the ​32-year-old, who won the WTA Finals in 2018.