Just two years ago, Caroline Wozniacki was in the final of the United States Open. A year ago, she came into this tournament as the No. 4 seed.
But since then, because of injuries and inconsistency, she has plummeted to 74th in the rankings.
This year, she missed two and a half months with an ankle injury that kept her out of the French Open. Since returning in June, she had advanced to the third round of a tournament only once.
But she is in the third round of the United States Open after upsetting ninth-seeded Svetlana Kuznetsova, 6-4, 6-4, Wednesday.