Simona Halep’s preparations for Wimbledon were cut short at the Topshelf Open on Wednesday as she retired from her second-round match against Germany’s Annika Beck with a shoulder injury.
Top seed Halep, who reached the final of the French Open, where she was narrowly defeated by Maria Sharapova, won the first set 7-5, but the defending champion pulled out trailing 2-3 in the second set.
The Romanian received treatment on her right shoulder before retiring and will be hoping for a swift recovery ahead of next week’s Grand Slam at the All England Club, where she is the third seed.
Fourth seed Carla Suarez Navarro was another injury casualty as the Spaniard was forced to retire with a back problem having lost the first set to China’s Zheng Jie, 7-5.
The seeds continued to fall on Wednesday as Belgium’s Kirsten Flipkens, the sixth seed, succumbed to a 7-6 (7/4), 6-4 defeat against Ukrainian Elina Svitolina.
Klara Koukalova was the lone seeded player to advance to the quarter-finals on Wednesday after beating German qualifier Mona Barthel 6-2, 7-6 (8/6).
The eighth-seeded Czech joins seventh seed Garbine Muguruza, the highest-ranked player left in the draw, in the last eight and will face Yaroslava Shvedova for a place in the semis after the Kazakh beat Dutchwoman Michaella Krajicek 7-6 (8/6), 7-6 (7/4).
World No. 27 Muguruza, who reached her first Grand Slam quarter-final at Roland Garros, will play Coco Vandeweghe as the American progressed following the third-set retirement of compatriot Vania King.
Fernando Verdasco is through to the men’s quarter-finals after seeing off Dutchman Jesse Huta Galung 7-5, 6-3.
The 23rd-ranked Spaniard, the top player in the draw, will face Juergen Melzer of Austria next after the eighth seed recovered from a set down to beat Slovak qualifier Lukas Lacko 5-7, 6-3, 6-3.