In the latest SW19 shock, Czech Barbora Zahlavova Strycova beat 16th seed Caroline Wozniacki in straight sets, 6-2 7-5.
Wozniacki has yet to get past this point at the All England Club and the 23-year-old must wait at least another year after the world No.43 claimed another notable scalp, having sent second seed Li Na packing in the previous round.
It took Zahlavova Strycova six match points to reach her first grand slam quarter-final, where she will face Peng Shuai – or her own compatriot Petra Kvitova.
Another Czech, Lucie Safarova, had earlier become the first Wimbledon quarter-finalist of 2014 by beating Tereza Smitkova 6-0 6-2, maintaining her record of not losing a set in this year’s tournament.
American Madison Keys had to withdraw from her match against Yaroslava Shvedova due to a thigh injury.