BASTAD, Sweden, July 18 (UPI) -- World No. 1 Serena Williams eased into the quarterfinals of the Collector Swedish Open but second-seeded Simona Halep is out after a retirement.
Williams had little trouble in getting past Anna Tatishvili 6-2, 6-3 in 61 minutes. Williams, despite dropping serve three times, won 60 percent of the points when serving and 63 percent off Tatishvili's serve.