The Swiss second seed will next face Japanese third seed Kei Nishikori, who beat former top-10 player Grigor Dimitrov 6-3, 3-6, 6-2 with four breaks of the Bulgarian's serve.

Although he's still recovering from the rib problems which forced him out of the fourth round of Wimbledon, Asia's top player won his 39th match of 2016, fighting back in the third set after losing the second and lifting his record over Dimitrov to 3-0.

Wawrinka was in full flow against Anderson as he swept the opening set in a master-class display.

Anderson, ranked 34th, has yet to reach the final four at the Masters 1000 level, losing in all seven of his attempts.

Wawrinka needed just 73 minutes to dispatch Anderson, who was limited to six aces and dropped his serve four times.

"It was a really good match, I started really well the first game," Wawrinka said.

"It's one of the best matches of the year I've played. It showed me that I was ready, aggressive, moving really well. I was calm, served very good and mixed up my game."

Two-time Grand Slam winner Wawrinka, the world number five, is chasing his fourth title of the season after success at Chennai, Dubai and Geneva.