Damir Dzumhur put a quick end to Stan Wawrinka's hopes of winning a third title at the Banque Eric Sturdza Geneva Open, defeating the second-seeded Swiss 3-6, 6-3, 6-4 in his second-round opening match Wednesday. Wawrinka had won the Geneva title in 2016-17. Wawrinka led 3-0 to start the decisive set,