Olympic champion Andy Murray still on a roll

Andy Murray followed up his second Olympic singles title with a second-round victory Wednesday night in the Western & Southern Open in Mason, Ohio.

The top-seeded Scot beat Argentina’s Juan Monaco, 6-3, 6-2, to set up a match against South Africa’s Kevin Anderson, a 6-2, 6-4 winner over 13th-seeded Richard Gasquet of France.

Rafael Nadal beat Uruguay’s Pablo Cuevas, 6-1, 7-6 (4). Second-seeded Stan Wawrinka of Switzerland also advanced, beating American Jared Donaldson, 2-6, 6-3, 6-4. Fourth-seeded Milos Raonic of Canada beat American John Isner, 7-6 (5), 7-6 (5).

In women’s second-round play, second-seeded Angelique Kerber of Germany beat France’s Kristina Mladenovic, 6-0, 7-5; third-seeded Simona Halep of Romania beat Germany’s Annika Beck, 6-3, 6-1; and fourth-seeded Garbine Muguruza of Spain topped American CoCo Vandeweghe, 7-6 (4), 6-2.