The 21-year-old phenom entered the French Open ranked No. 9 in the world and became a favorite to make an appearance in the semifinals after Serena Williams' first-round exit. After losing to 23rd-ranked Kanepi in three sets, Wozniacki's French Open hopes are gone.
The third-round exit marked her second consecutive third-round finish in the French Open.
Wozniacki's greatest weakness in the upset was her slow start. Kanepi took the first set 6-2 and fell way behind in the second set before expending a great amount of energy on a rally that saw her take the set 7-6. By the time the third set rolled around, Wozniacki was exhausted and dropped the set 6-3.
Surprisingly, Wozniacki didn't commit many unforced errors—she only committed 17 in comparison to Kanepi's 41. Where Wozniacki struggled was her ability to hit winners—ending the match with 14 winners to Kanepi's 46.
If Wozniacki wants to realize her potential and start to contend for Grand Slam titles, she must become more aggressive.
As the No. 9 player in the world, Wozniacki shouldn't be playing from behind to the likes of Kanepi, currently ranked No. 23. Going forward, Wozniacki will need to learn from this loss if she plans on making a quality run at Wimbledon—a tournament that she has been eliminated from in the fourth round for three years running.
With Wozniacki's past success and youth, there's no doubt that she is a future star. After another disappointing exit at a Grand Slam, it appears the future isn't quite here yet.