The victory gave the unseeded American a place in the Birmingham Classic final against Russian Vera Zvonareva.
The Swiss top seed begins his quest for a record-equalling fifth consecutive men's singles title against Teimuraz Gabashvili, while second seed Rafael Nadal meets American Mardy Fish.
The Frenchwoman withdrew from the doubles with partner Tatiana Golovin because of injury.
She has withdrawn from the doubles with partner Tatiana Golovin because of injury.
The Russian clinched her first Birmingham Classic title, beating surprise finalist Jamea Jackson in a close fought match.
Shocks have been notable by their absence so far and a clutch of A-list contenders eased into the men's second round.
They beat Kateryna Bondarenko of Ukraine and Heidi El-Tabakh of Egypt in the French Open girls' doubles quarters.