Elina Svitolina of Ukraine reacts after defeating Naomi Osaka of Japan during the quarter-final tennis match in the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2018. Pic/AFP

Elina Svitolina of Ukraine on Thursday prevailed over Japanese wild card Naomi Osaka 6-2, 6-4, earning a place in the semi-finals of the Dubai Duty Free Tennis Championships, a hard-court WTA event here.