Third-seeded Swiss Stan Wawrinka has won through to the second round at the Geneva Open, brushing aside American Jared Donaldson 6-3, 6-4.

It was just the fourth win all season for the 33-year-old Wawrinka, a three-time Grand Slam champion who is trying to work his way back into form after suffering a serious knee injury last season.

He was dominant on serve in Wednesday’s match, not facing a single break point during the one-hour, eight-minute contest.

The two-time defending champion at this event, held just days before Roland Garros kicks off on Sunday, also was opportunistic on return, breaking Donaldson once a set en route to a relatively routine win.

“I’m happy with my match today. I felt good out there. This will be the first time in a while that I play back-to-back matches. I like to play in front of the Swiss crowd and the fans have always given me great support here,” Wawrinka told the ATP World Tour’s Web site.

Next up for the Swiss on Thursday will by Hungary’s Marton Fucsovics, a 7-6 (7-5) 6-4 winner over American Frances Tiafoe.

Second-seeded Italian Fabio Fognini also advanced to the final eight, although he dropped a set before cruising past American Noah Rubin 6-7 (5-7) 6-2 6-2.

Seventh-seeded Andreas Seppi defeated 281st-ranked Spanish qualifier Bernabe Zapata Miralles 7-5 6-3.