London - Petra Kvitova's hopes of a third Wimbledon singles title evaporated on Monday, beaten by Britain's Johanna Konta 4-6, 6-2, 6-4 in their last 16 clash.
The 29-year-old Czech sixth seed, in the fourth round for the first time since she won the second of her titles in 2014, bows out leaving just two of the top 10 seeds remaining, Simona Halep and Elina Svitolina.
Konta, who reached the French Open semi-finals, blew her first chance of closing out the match serving at 5-2 in a game that lasted 10 minutes.
She wasted two match points and Kvitova broke her on her fourth break point.
The British player, though, suffered no such nerves when presented with two more on her following service game.
Should Konta, seeded 19, beat 33-year-old Czech Barbora Strycova in Tuesday's quarter-final she will be into her second Wimbledon semi-final having reached the same stage in 2017.
Wimbledon results on Monday (x denotes seeding):
Men
4th round
Novak Djokovic (SRB x1) bt Ugo Humbert (FRA) 6-3, 6-2, 6-3
David Goffin (BEL x21) bt Fernando Verdasco (ESP) 7-6 (11/9), 2-6, 6-3, 6-4
Roberto Bautista Agut (ESP x23) bt Benoit Paire (FRA x28) 6-3, 7-5, 6-
Sam Querrey (USA) bt Tennys Sandgren (USA) 6-4, 6-7 (7/9), 7-6 (7/3), 7-6 (7/5)
Rafael Nadal (ESP x3) bt Joao Sousa (POR) 6-2, 6-2, 6-2
Kei Nishikori (JPN x8) bt Mikhail Kukushkin (KAZ) 6-3, 3-6, 6-3, 6-4
Roger Federer (SUI x2) bt Matteo Berrettini (ITA x17) 6-1, 6-2, 6-2
Women
4th round
Alison Riske (USA) bt Ashleigh Barty (AUS x1) 3-6, 6-2, 6-3
Serena Williams (USA x11) bt Carla Suarez Navarro (ESP x30) 6-2, 6-2
Barbora Strycova (CZE) bt Elise Mertens (BEL x21) 4-6, 7-5, 6-2
Johanna Konta (GBR x19) bt Petra Kvitova (CZE x6) 4-6, 6-2, 6-4
Elina Svitolina (UKR x8) bt Petra Martic (CRO x24) 6-4, 6-2
Karolina Muchova (CZE) bt Karolína Pliskova (CZE x3) 4-6, 7-5, 13-11
Simona Halep (ROU x7) bt Cori Gauff (USA) 6-3, 6-3
Zhang Shuai (CHN) bt Dayana Yastremska (UKR) 6-4, 1-6, 6-2