Rising star Anett Kontaveit secured a big upset victory over third seed Carolina Wozniacki in the second round of the Aegon Open in Nottingham on Wednesday.
The 20-year-old Estonian won 6-7 (5-7), 6-3, 7-5 to advance to her second quarter-final of the year.
A seemingly rusty Wozniacki was playing only her second match since skipping the entire clay court season due to a right ankle injury.
The Dane seemed on course after clinching a tight first set in a tie-break and staying solid on serve midway through the second, but Kontaveit found another level.
After coming out ahead following a trio of service breaks, she leveled the match to force a third set, and then raced to a 4-1 lead courtesy of another double break.
Wozniacki showed some fight and won four games on the trot to get back on level terms, but Kontaveit had one last ace up her sleeve, breaking for a third time in the set to seal victory after two hours and 12 minutes.
She moves on to face American Alison Riske, who beat Taipei's Hsieh Su-Wei, 6-2, 6-4 earlier in the day.
Also advancing on Monday were Puerto Rico's Monica Puig, who defeated Michelle Larcher de Brito 6-4, 6-0, and top seed Karolina Pliskova, who was a 6-1, 6-3 winner over Anna Tatishvili.
It was sweet revenge for Pliskova, who lost to Tatishvili in the first round of the US Open and also knocked out her twin sister Kristyna on Monday.