Britain's Heather Watson has been eliminated from the Poland Open after losing to her doubles partner Yanina Wickmayer in the quarter-finals.
Watson, 31, was beaten 4-6 3-6 by the Belgian, with Wickmayer set to face top seed Iga Swiatek in the last four.
Laura Siegemund defeated fellow German Tatjana Maria 5-7 6-3 6-4 in the first semi-final.
Watson and Wickmayer defeated Ankita Raina and Yue Yuan 0-6 7-6 6-10 in the doubles semi-finals on Friday.
Poland's Swiatek, 22, defeated Czech 18-year-old Linda Noskova 6-1 6-4 to progress to the last four, while Siegemund and Maria eliminated Lucrezia Stefanini and Rebecca Sramkova in their respective quarter finals.