Britain's Emma Raducanu saved a match point on her way to knocking out world number five Jessica Pegula and reaching the quarter-finals at Eastbourne.
The 21-year-old wildcard had never won against a top 10 opponent before.
But she rallied from a set down against Pegula, saving match point in the second-set tie-break before battling to a remarkable 4-6 7-6 (8-6) 7-5 victory.
"I'm pretty drained right now," said Raducanu.
"I want to say thanks to everyone for gettnig me through some really difficlut moments in that match."
Raducanu's win continued an impressive day for British women's tennis on the south coast as Katie Boulter moved past former French Open champion Jelena Ostapenko with a confident 6-4 7-5 victory.