Two-time defending champion Elina Svitolina is through the semi-finals at the Dubai Tennis Championships for the fourth year in a row after defeating Spain's Carla Suarez Navarro in two hard-fought sets on Thursday. Svitolina twice came back from a break down in the second set, but the Ukrainian still got the job done in straight sets, taking an hour and 19 minutes to seal a 6-2, 6-3 victory. The sixth seed's success, under the watchful eye of boyfriend Gael Monfils, keeps her on track to complete a 'Dubai treble'. While Svitolina wouldn't be the first woman to lift three or more Dubai trophies - Justine Henin (2003-2004, 2006-2007) and Venus Williams (2009-2010, 2014) have already achieved the feat - she would be the first to claim three in a row. Svitolina will face Belinda Bencic of Switzerland in the semi-finals.