Former world No. 1 Naomi Osaka was dumped out of the 's-Hertogenbosch grass-court tournament in a deciding tiebreak thriller Friday, ending an encouraging run on the surface ahead of Wimbledon.

A battling performance by Canadian Bianca Andreescu, ranked a lowly 228 in the world, took her into the semifinals with a 6-4, 3-6, 7-6 (3) victory over the four-time Grand Slam champion.

Andreescu, the 2019 U.S. Open champion, will next face Dalma Galfi from Hungary for a place in Sunday's final, with the draw opening up after the defeat of top seed Jessica Pegula.