BEIJING — Novak Djokovic extended his winning streak at the China Open to 27 matches with a 6-2 6-2 demolition over big-serving American John Isner on Friday.
The world number one was in devastating form, conceding just three aces in a masterclass performance to reach the semi-finals in Beijing.
The Serbian is chasing his sixth title in Beijing and his seventh this year, which already includes the Australian Open, Wimbledon and U.S. Open championships.
His next opponent is Spain's David Ferrer, who won the Malaysian Open last week. Ferrer eased into the semi-finals with a 6-3 6-1 victory over Taiwan's Lu Yen-hsun.