Williams and Agassi get off to a perfect start
Former men’s champion Andre Agassi also showed top form, taking his year record to 24 wins for only two losses with a 6-2, 6-3, 6-3 win over Karol Beck of Slovakia.
Agassi now faces Croatian Mario Ancic, who was leading Chilean former world number one Marcelo Rios 6-1, 1-0 when the South American withdrew through injury.