Berlin: Elena Rybakina suffered a setback in the build-up to her Wimbledon title defence when she was knocked out of the Berlin WTA event by Donna Vekic on Wednesday.
Vekic, ranked 23 in the world, beat the second-seeded Kazakh 6-7 (1-7), 6-3, 6-4 to make it through to the quarter finals.
