KEY BISCAYNE, Fla. (AP) -- Serena Williams advanced to the fourth round of the Sony Ericsson Open by beating Roberta Vinci 6-2, 6-1 Saturday.
Williams dominated with her serve and played patiently from the baseline, winning a succession of long rallies. She hit 25 winners while committing 20 unforced errors.
Seeded 10th, Williams is making her return to tournament tennis after a two-month absence because of a left ankle injury. At No. 20, Vinci is the highest-ranked player Williams has beaten this year.
Williams is seeking a record sixth title in Key Biscayne.