Top-seeded Novak Djokovic survived a second-set challenge to dismiss eighth-seeded Leonardo Mayer, 6-3, 7-5, to reach the Qatar Open semifinal in Doha. Mayer made four unforced errors when serving for the second set at 5-4, opening the door for Djokovic to take a straight-set victory. In the semifinals, he will play Tomas Berdych, who earned a 6-3, 6-2 victory over Kyle Edmund.
Despite being broken four times, second-seeded Rafael Nadal advanced to the semifinals with a 6-3, 5-7, 6-4 win against Andrey Kuznetsov. Nadal will next play Illya Marchenko, who defeated seventh-seeded Jeremy Chardy, 6-3, 7-6 (3).