SYDNEY (AP) -- Top-ranked Caroline Wozniacki came back from 4-0 down in the final set to beat Dominkia Cibulkova of Slovakia 7-5, 2-6, 6-4 Tuesday and advance to the quarterfinals at the Sydney International.
The match ended on a line call that was ruled in and later, on video review, appeared out by a few millimeters, giving Wozniacki victory on her second match point.
Wozniacki, who was No. 1 for all but one week of last year, has achieved the top ranking without having won a Grand Slam. The Dane's best finish in four appearances at the Australian Open, which begins next Monday, was the semifinals last year.