Tokyo, Japan (Sports Network) - Defending champion Andy Murray was an easy second-round winner Wednesday at the Japan Open.
The top-seeded and world No. 3 Murray posted a 6-1, 6-2 victory over Slovakia's Lukas Lacko to secure a spot in his 11th quarterfinal this year.
Lacko has lost all but one of 27 sets against Top 10 players.
Next up for Murray, the U.S. Open champion and Olympic gold medalist, will be seventh-seeded Swiss Stanislas Wawrinka, who outlasted Frenchman Jeremy Chardy 7-6 (7-1), 6-7 (6-8), 7-5.
Meanwhile, in first-round action, third-seeded Serbian Janko Tipsarevic rallied to beat France's Gilles Simon 4-6, 6-3, 6-1 and fourth-seeded Argentine Juan Monaco handled Bulgarian qualifier Grigor Dimitrov 6-2, 6-1.
Monaco is coming off last week's win in Kuala Lumpur, his first title on a surface other than clay.
The winner of this event will claim a first prize of $308,000.