Iga Swiatek beats Marketa Vondrousova at the WTA Finals in straight sets

Iga Swiatek climbed out of a deep early hole against Marketa Vondrousova at WTA Finals and n pulled away by dominating second set for a 7-6 (3), 6-0 victory in round-robin action Monday.

U.S. Open champion Coco Gauff was scheduled to face three-time major runner-up Ons Jabeur in or singles match on Day 2.

Swiatek, who won French Open in June for her third Grand Slam title, is ranked . 2 and has a chance to overtake Aryna Sabalenka at . 1, depending on ir results at season-ending championships.

left-handed Vondrousova, reigning Wimbledon champion , broke in three of Swiatek's initial four service games en route to a 5-2 edge at outset. Swiatek h trouble finding her range on temporary outdoor hard court that has drawn criticism from some players at event: She was responsible for 13 of match's first 16 unforced errors.

Vondrousova served for that set at 5-2 and 5-4, but Swiatek began turning things around and grabbed 13 of 17 points in one stretch. What became a four-game run put Swiatek ahe 6-5.

At 3-all in tiebreaker, Swiatek took over for good. She smacked a big forehand winner, collected a service winner and hit her first ace of evening to get to set point, before Vondrousova double-faulted to end it.

That set took 64 minutes. second lasted just 35, with Swiatek holding a 27-9 edge in points.