Former French Open champion Wawrinka in winning Geneva start

Lausanne - Stan Wawrinka, who suffered a shock first round exit in Rome last week in his first match in three months, returned to winning ways on 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 21:00 due to rain at the Swiss venue. 

He will face Hungary's world number 60 Marton Fucsovics in Thursday's quarter-finals.