In a weird match, Johanna Konta defeated World No. 1 player Angelique Kerber to advance to the semifinals in Eastbourne. Konta's fourth match point came after a 10-minute stoppage during which she recovered from a nasty spill for which she had to get treatment.
Earlier in the day, Konta battled past French Open champion Jelena Ostapenko 7-5, 3-6, 6-4.
Karolina Pliskova gave herself the flawless pre-Wimbledon tonic by lifting the Aegon International title on the grass at Eastbourne, defeating Caroline Wozniacki 6-4 6-4 in impressive style in the final.
It appeared she had shaken off the fall which reduced her to tears, but a sleepless night, a sore head and a problem with the thoracic area on his spine forced her to rethink her schedule. Elina Svitolina could face Dominika Cibulkova and Simona Halep could potentially clash with home-favorite Johanna Konta, who is hoping to become Britain's first women's Wimbledon champion since Virginia Wade in 1977.
The final will be contested by Wozniacki and Pliskova.
GETTYJohanna Konta has pulled out of Eastbourne
The Dane's big-match experience told in the key moments of the third set, and she reached her fourth final of the year when Watson netted a forehand on Wozniacki's second match point.
"This feels better", said the 25-year-old Pliskova on court afterwards, comparing her feeling to the defeat in the same final last year. "I thought we played some great tennis, both of us, obviously it's great preparation for Wimbledon".
Konta could wait until as late as Monday lunch time before making a decision on whether she plays or not.
"I've played seven sets in a day and half", she said. That's a small advantage, but at the same time, I'm just excited to be in another finals this year.
In the men's draw, joining Novak Djokovic in the semifinals are Richard Gasquet - a 6-3, 6-2 victor over John Isner, Steve Johnson's conqueror Daniil Medvedev and second seed Gael Monfils, who beat Bernard Tomic 7-6 (4), 6-0.More news: Kang, Kim duel it out in PGA event