Jessica Pegula defeated Ukraine's Marta Kostyuk in straight sets at the WTA Finals in Indian Wells. (EPA Images pic)LOS ANGELES: Jessica Pegula reignited her challenge at the season-ending WTA Finals on Tuesday, battling past Ukraine's Marta Kostyuk in straight sets to stay on course for a semi-final berth.
Pegula, beaten by Coco Gauff in her opening group game at Indian Wells on Sunday, overcame a topsy-turvy second set to win 6-2, 7-5.
The win means Pegula can advance to the last four with a victory over Czech eighth seed Linda Noskova in her final group game. Kostyuk is eliminated following the defeat.
"I feel like I'm playing well," Pegula said. "I felt my match against Coco was a super high-level match and that was a great match today.
