Iga Swiatek defeats Danielle Collins, Jessica Pegula claims comeback win against Martina Trevisan at Cincinnati Masters

Jessica Pegula defeated Martina Trevisan 6-7(2-7) 6-2 6-3 to reach the last 16 at the Cincinnati Masters, while Iga Swiatek defeated Danielle Collins 6-1 6-0.

The world No. 1 had little trouble dismissing the American as she prepares for her attempt to retain her New York title next month.

The 22-year-old also added her third French Open title to her resume this season, and last month claimed the WTA Poland in her home city of Warsaw.

She lost in Montreal at the National Bank Open to Pegula over three sets in the semi-finals.

Pegula remains in good form ahead of the season’s final Grand Slam event, the US Open.

The 29-year-old American is currently ranked No. 3 in the world and has quarter-final finishes at both the Australian Open and Wimbledon this year, and also reached the same stage at last year’s US Open.

Last week Pegula picked up her second WTA 1000 trophy in Montreal last week, and after her win she revealed she had been suffering from poor health in the build-up.

She said: “I’m so tired from the heat, from the last two matches, the first week on hard court outside in the heat, bad travel day. I honestly wasn’t feeling very well for Monday and Tuesday. I was like, I think I’m getting sick.”

She will face Elise Mertens or Marie Bouzkova in the next match, and should she win it will be only her second hard court quarter-final of the season.

“Since Wimbledon, I think I’ve made more of a conscious effort mentally to play more aggressively and I’ve just been seeing the ball, for whatever reason, pretty well,” Pegula added. “Even before D.C., practising at home I felt really good.

“I think I’m past the phase of ‘Oh, I hope I keep winning.

With her growing confidence and experience, Pegula said she now feels no need to “prove a point to myself or anyone else.

“I’m not going to sit there and put undue pressure on myself. Maybe it’s me getting older. I don’t care. Whatever happens, happens.”

Daria Kasatkina also progressed, after defeating France’s Vaarvara Gracheva 6-3 6-1, and Marketa Vondrousova beat Anastasia Potapova 6-4 6-2.