Beijing, China (Sports Network) - World No. 1 Novak Djokovic and third-seeded Frenchman Jo-Wilfried Tsonga were a pair of easy quarterfinal winners Friday at the $2.2 million China Open.
The two-time Beijing champion Djokovic drubbed struggling Austrian left-hander Jurgen Melzer 6-1, 6-2 in a mere 53 minutes on the hardcourts at the National Tennis Centre.
The Serbian star swatted 12 aces and was not broken on Day 5.
"The serve was great," Djokovic said. "It's one of the best serving matches I have had in my career, so that's a positive sign."
Djokovic was the back-to-back China Open champion in 2009 and 2010. He also captured this year's Australian Open and was the runner-up at the 2012 French and U.S. Opens.
The five-time Grand Slam titlist Djokovic's semifinal opponent on Saturday will be German Florian Mayer, who handled Chinese wild card Ze Zhang 6-3, 6-4. Djokovic is 2-0 lifetime against Mayer, including a quarterfinal victory at Wimbledon in July.
The other semifinal will pit the world No. 7 Tsonga against Spanish southpaw Feliciano Lopez. Tsonga cruised past Russian Mikhail Youzhny 6-3, 6-2, while Lopez came from behind to bounce 6-foot-6 American Sam Querrey 4-6, 6-4, 6-4. Lopez and Querrey combined for 22 aces, including 12 by the winner.
Tsonga is 4-0 lifetime versus Lopez, including a victory at the London Olympic Games this past summer.
The 2012 Beijing champ will earn $530,570.