Elina Svitolina's place at the WTA Finals was sealed when Karolina Pliskova lost 6-1 6-2 to Vera Zvonareva in the second round of the Kremlin Cup on Wednesday.
Second seed Pliskova went down in straight sets against the Russian qualifier, putting her place in the season-ending tournament in jeopardy.
The Czech is now relying on Kiki Bertens failing to reach the semi-finals in order to take the final remaining spot in Singapore.
Pliskova lasted just 73 minutes against two-time grand slam runner-up Zvonareva, who claimed her first win against a top-10 opponent in almost seven years.
World number six Svitolina, who is not in action on the WTA Tour this week, qualified for the Finals for the first time last season but failed to get beyond the round-robin stage.
Bertens received a first-round bye in Moscow and will have to overcome Aliaksandra Sasnovich and Daria Gavrilova or Johanna Konta in order to secure a berth in Singapore.
It's official!@ElinaSvitolina is heading back to @WTAFinalsSG for the second straight year!@Porsche pic.twitter.com/AueudNmXCF
— WTA (@WTA) October 17, 2018
Top Headlines
Featured Matches
Football
Arsenal
English Premier League
2-0
Brighton and Hove Albion
Aston Villa
English Premier League
2-0
Chelsea
Fulham
English Premier League
0-1
Newcastle United
Leeds United
English Premier League
2-0
West Bromwich Albion
Leicester City
English Premier League
2-1
Tottenham Hotspur
Manchester City
English Premier League
2-0
Everton
Liverpool
English Premier League
1-0
Crystal Palace
Cricket
Sussex
Sri Lanka
Teams will be announced at the toss
Multan Sul..
Quetta Gla..
Teams will be announced at the toss
Islamabad..
Karachi Ki..
Teams will be announced at the toss
Peshawar Z..
Lahore Qal..
Teams will be announced at the toss
Islamabad..
Quetta Gla..
Teams will be announced at the toss
Lahore Qal..
Islamabad..
Teams will be announced at the toss
Mumbai Ind..
Delhi Capi..
Teams will be announced at the toss