Swiatek cruises past Collins, Pegula survives test

Iga Swiatek made quick work of qualifier Danielle Collins as she raced to a 6-1 6-0 victory on Wednesday to reach the Cincinnati Open third round as third seed Jessica Pegula survived a tough opening match.

World No 1 Swiatek broke the 29-year-old Collins seven times, faced only two break points and wrapped up a one-sided match in a tidy 59 minutes.

"I feel like I was really solid and I didn't make a lot of unforced errors," Swiatek said in her on-court interview.

"I really like playing that way because it gives me confidence and I can be proactive from the beginning to the end so I am pretty proud of today."

Swiatek raced out to 3-0 lead in the opener and, after both players swapped service breaks, the top-seeded Pole held to love before closing out the set with her fourth break.

It was more one-way traffic in the second set as a fully-focused Swiatek shifted into cruise control and barely broke a sweat in a match she ended in style with a break to love.

Earlier, Jessica Pegula had her hands full in her first match since winning last week's Canadian Open as the American overcame a slow start to secure a gutsy 6-7(2) 6-2 6-3 win over Italian qualifier Martina Trevisan.

Pegula comfortably lost the first-set tiebreak but showed her quality in the second set before racing out to a 3-0 lead in the decider en route to her 27th hardcourt win this year.

In the evening, second seed Aryna Sabalenka fended off a third-set comeback attempt by qualifier Ann Li of the US to notch a 7-5 2-6 6-4 victory and set up a meeting with Russia's Daria Kasatkina.

After trading the first two sets, the Belarusian appeared in control when she jumped out to a 5-1 lead in the decider but her 192nd-ranked opponent had other ideas, winning three straight games to whittle the lead down to a single game.

Despite the rising pressure the hard-hitting Sabalenka kept her cool, sealing the win with an unreturnable serve on match point to improve to 42-9 on the year.

Fourth seed Elena Rybakina also came through a three-set slugfest to defeat Jelena Ostapenko 6-7(6) 6-2 6-4 to reach the round of 16.

Rybakina crushed 11 aces to raise her season-leading tally to 392 and will next face Italy's Jasmine Paolini for a place in the quarters.

Veteran American Venus Williams started strong against Zheng Qinwen before succumbing to a 1-6 6-2 6-1 defeat at the hands of the Chinese player.

Williams, 43, received a wild card into the US Open earlier on Wednesday and will be competing at the year's final major in New York for a record-extending 24th time.

In other action, American teenager Coco Gauff, seeded seventh, breezed past Egyptian Mayar Sherif 6-2 6-2, Wimbledon champion Marketa Vondrousova beat Anastasia Potapova 6-4 6-2 and Kasatkina overcame lucky loser Varvara Gracheva 6-3 6-1.