British number one Johanna Konta won her first-round match at Eastbourne 6-2 6-4 against Ukrainian qualifier Dayana Yastremska.
Konta, who is seeded 14th at the Nature Valley International, came through in one hour 14 minutes without facing a break point.
The French Open semi-finalist, 28, will face Greece’s Maria Sakkari in the next round at Devonshire Park.
“I’m pleased – I knew Dayana was a big hitter,” Konta said.
“There was always going to be very little in it, regardless of the score and the second set could have gone either way.”
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British trio Heather Watson, Harriet Dart and Katie Swan all lost their first-round matches earlier on Sunday.
Watson, 27, who is British number two, was defeated by France’s Alize Cornet 7-5 6-2.
Meanwhile, 22-year-old Dart lost 3-6 6-4 6-2 to 16th seed Anett Kontaveit of Estonia and Swan, 20, fell 7-6 4-6 6-4 to China’s Zhang Shuai.
In the men’s qualifying event, British teenager Paul Jubb made it through to the main draw with a 4-6 6-3 6-2 win over Russian Andrey Rublev.
Jubb, who last month became the first Briton to win the US colleges’ prestigious NCAA men’s singles title, is joined by compatriot James Ward, who beat Denis Kudla 6-3 6-2.
The action continues on Monday, with Jubb taking on American Taylor Fritz and British number two Cameron Norrie facing France’s Jeremy Chardy in the men’s first round.
In the women’s draw, second seed Karolina Pliskova, fifth seed Elina Svitolina and defending champion Caroline Wozniacki begin their campaigns.
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