Linda Noskova became the first player to reach the semi-finals of the WTA Finals after securing a dominant 6-3 6-3 straight sets victory over Coco Gauff.
It was a commanding performance from the Czech against the world No.4 as Noskova made it two wins from two with another impressive performance following her win over Marta Kostyuk.
The 21-year-old is yet to drop a set at a WTA finals, underlining her excellent form as she continues to enjoy an outstanding season.
She has now advanced with her two wins, while Gauff and Jessica Pegula have a win and a loss in Group One.
After two losses, Kostyuk has been eliminated from the tournament. The Ukrainian replaced world No. 1 Elena Rybakina, who was forced to withdraw due to illness.
Pegula, meanwhile, bounced back from her loss to Gauff to keep her hopes of reaching the WTA Finals semifinals alive with a 6-2, 7-5 win over Kostyuk.
Pegula made an explosive start, breaking the Ukrainian in the opening game before securing a second break to easily take the first set 6-2.
Kostyuk offered more resistance in the second set, putting Pegula under more pressure, but the American hit a crucial break at the end before serving out the match to seal a straight sets win.
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