He will next face 31-year-old French qualifier Sebastien De Chaunac, who later upset No. 14 seed Dmitry Tursunov of Russia 3-6 7-6 (7-3) 7-5.

CNN: Roddick victorious on return from injury

Elsewhere in the men's draw, seventh seed Andy Roddick beat Dutchman Thiemo de Bakker 6-1 6-4 6-4, dropping only nine games in the process.

CNN: Nadal and Murray ease into second round

Home hopes were boosted by an easy straight sets win for seventh seed Andy Roddick over Thiemo de Bakker of the Netherlands while in-form Jo-Wilfried Tsonga of France was taken to three sets before beating Albert Montanes of Spain, 4-6 6-3 6-3.

CNN: Federer makes shock exit in California