The world No. 1 beat former No. 1 Jelena Jankovic 6-0, 7-5 in the last match Sunday night. Wozniacki is set to face Kim Clijsters in the quarter-finals.
“My confidence is high, my fitness is good, my play is improving and I’m very positive,” Wozniacki said. “If I play like I did today, Kim will have to really play well to beat me.” Photo: Robert Prezioso/Getty Images