Bride-to-be Dominika Cibulkova sent world number three Agnieszka Radwanska crashing out of Wimbledon on Monday, while Australian Open champion Angelique Kerber cruised into the quarter-finals.
Cibulkova defeated Poland's Radwanska en route to her first grass-court title at Eastbourne last month and emulated that result with a surprise 6-3, 5-7, 9-7 fourth round victory to secure her first Wimbledon quarter-final berth since 2011.
The 27-year-old will play Russian world number 50 Elena Vesnina or Russian world number 35 Ekaterina Makarova for a place in her first Wimbledon semi-final.
Cibulkova cried tears of joy as she rolled on the court in celebration after the final point, but the triumph could come with a sting in the tail as she will have to postpone her wedding if she makes it to Saturday's final.
The 2014 Australian Open runner-up is due to get married to fiancé Miso Navara in Bratislava on the same day after planning the big occasion nine months ago.
Radwanska, beaten in the 2012 Wimbledon final, is still waiting for her first Grand Slam title.
German fourth seed Kerber cruised into her third Wimbledon quarter-final with a 6-3, 6-1 thrashing of Japanese world number 49 Misaki Doi.
Kerber, who won her maiden Grand Slam crown in Melbourne in January, has yet to drop a set in four matches and could leave Wimbledon as the world number one if she wins the title and Serena Williams fails to make the semi-finals.
"I'm feeling my tennis is getting better and better every day. This is what counts in the second week of a Grand Slam," Kerber said.
"It's important for my confidence. But I know I have still a long way (to win Wimbledon). I have to play really good."
Kerber plays Romania's Simona Halep, who fought back to reach her second Wimbledon quarter-final with a 6-7 (5/7), 6-4, 6-3 victory against American ninth seed Madison Keys.
Fifth seed Halep, a former French Open runner-up, made the semi-finals at the All England Club in 2014.
Russian 21st seed Anastasia Pavlyuchenkova, who celebrated her 25th birthday on Sunday, reached her first Wimbledon quarter-final with a 6-3, 6-3 win over Coco Vandeweghe of the United States.