Caroline Wozniacki enters the 2014 U.S. Open as the No. 10 seed in the women's draw. Her first-round opponent will be Magdalena Rybarikova of Slovakia.
Here is a look back at Wozniacki's past performances at the U.S. Open.
Wozniacki turned pro in 2005 and made her U.S. Open debut two years later.
In last year's tournament, Wozniacki entered as the No. 6 seed and was stunned in the third round by qualifier Camila Giorgi of Italy in three sets. After jumping out to an early lead, Giorgi stormed back to close out the match with two straight set wins (6-4, 6-3).
While the third round exit in 2013 was still an improvement over 2012, when Wozniacki was ousted by Irina-Camelia Begu of Romania in the very first round as the No. 8 seed, it was a far cry from the run she had from 2009 to 2011.
In 2009, Wozniacki was the No. 9 seed, but she managed to reach the finals where she was the runner-up after losing to Belgium's Kim Clijsters. Clijsters went on to win the U.S. Open again in 2010, while Wozniacki fell short in the semifinals.
The finals loss to Clijsters in 2010 was the best U.S. Open finish of Wozniacki's career.
Wozniacki was the No. 1 seed in 2010, but Vera Zvonareva pulled off the upset in straight sets.
One year later in 2011, Wozniacki again reached the semifinals as the top seed, but American Venus Williams scored the win (6-2, 6-4).
This year, Wozniacki's draw places her in the same section of the bracket as a number of notable players including Simona Halep, Maria Sharapova, Sabine Lisicki and Venus Williams.
Wozniacki's career record at the U.S. Open entering this year's tournament is 22-7.
- Josh Sanchez