STOCKHOLM, July 20 (Xinhua) -- Top seed Serena Williams of the United States eased past Czech third seed Klara Zakopalova in straight sets to reach the final at WTA Swedish Open on Saturday.

World No. 1 Williams won the first eight games in a row before sealing the match 6-0, 6-4 in 67 minutes. She smashed 7 aces in the match while the Czech only managed one but conceded three double faults.

Williams will face local hope Johanna Larsson in the final. The eight seeded Swede rallied to beat Italy's Flavia Pennetta 2-6, 6-3, 6-4 in the other semifinal.