|Caroline Wozniacki of Denmark hits a return August 12, 2012. (Reuters/CHRISTINNE MUSCHI)
NEW HAVEN, CT - Four-time reigning champion Caroline Wozniacki continued her winning ways Wednesday at the $637,000 New Haven Open at Yale, a final U.S. Open tune-up.
The third-seeded former world No. 1 Wozniacki improved to 19-0 lifetime in New Haven with a 7-6 (7-4), 6-2 victory over Swede Sofia Arvidsson on the hardcourts at the Connecticut Tennis Center at Yale.
The Danish star beat Czech Petra Cetkovska in last year's New Haven finale. Her quarterfinal opponent on Thursday will be Slovakian Dominika Cibulkova.
A sixth-seeded Cibulkova whipped German Andrea Petkovic 6-4, 6-1. Petkovic, who entered 2012 ranked 10th in the world, has battled injuries for most of the year, as this marked her first event in nearly four months and only her fourth tournament of the season.
Eighth-seeded Czech Lucie Safarova reached the quarters by blitzing China's Zheng Jie 6-4, 6-0.
The 2012 New Haven champion will collect $107,000.