Pliskova through to Pan Pacific Open quarters

Second-seeded Karolina Pliskova defeated Poland's Magda Linette in convincing fashion to reach the quarter-finals of the Pan Pacific Open in Tokyo on Wednesday.

The 25-year-old Czech's serve dominated proceedings with eight aces as she hammered Linette 6-2, 6-1 in just 61 minutes.

In the opening set, Pliskova held serve in the first game and broke her opponent's immediately to lead 2-0. Then in the eighth game, she broke again converting her second set point.

The second was oneway traffic with service breaks in the second and sixth games for Pliskova to wrap the set and match up 6-1.

She next faces seventh-seeded Angelique Kerber of Germany in the quarter-finals, after she saw off the challenge of Russian Daria Kasatkina 7-6(5), 6-3. 

"My serve was working well and my shots had great depth," Pliskova said afterwards. "I played against her in New York so knew what to expect. She didn't play her best game today and I was able to take advantage." 

In other action, Anastasia Pavlyuchenkova of Russia was made to battle before beating China's Wang Qiang 6-4, 4-6, 6-2 in just over two hours. 

Top-ranked Garbine Muguruza of Spain was too strong for 2016 Rio Olympic gold medalist Monica Puig thumping her 6-4, 6-0 in 75 minutes.