Stan Wawrinka, who suffered a shock first-round exit in Rome last week in his first match in three months, returned to winning ways Wednesday by seeing off Jared Donaldson of the United States 6-3, 6-4 in his Geneva tournament opener.
Wawrinka is building up to the French Open which he won in 2015 but his career has been badly affected by a recent knee injury that required surgery and meant he had only won three matches all year before Wednesday.
The Swiss star, twice a champion in Geneva, only got on to court just after 9pm due to rain at the Swiss venue.
He will face Hungary’s world number 60 Marton Fucsovics in Thursday’s quarter-finals.
Results, 2nd rd
Stan Wawrinka (SUI x3) bt Jared Donaldson (USA) 6-3, 6-4
Márton Fucsovics (HUN) bt Frances Tiafoe (USA) 7-6 (7/5), 6-4
Andreas Seppi (ITA x7) bt Bernabe Zapata (ESP) 7-5, 6-3
Tennys Sandgren (USA) bt Mirza Bašic (BIH) 6-3, 6-2
Fabio Fognini (ITA x2) bt Noah Rubin (USA) 6-7 (5/7), 6-2, 6-2
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