Harriet Dart shocked British number one Katie Boulter in an extraordinary final-set tie-break to reach the Wimbledon third round.
World number 94 Dart became tearful when she fell 6-2 down in the breaker but won eight of the last 10 points to knock out the 32nd seed.
Boulter's forehand, usually her main weapon, became increasingly erratic in breezy conditions on Court One as Dart won 4-6 6-1 7-6 (10-8) in just under three hours.
"I wear my emotions on my sleeve so you see everything how I'm thinking, unfortunately, but I'm so happy to be able to get through," Dart said.