The players that pose the biggest threat to the 2003, 2005, and 2006 French Open winner, Justine Henin, are Serena Williams and Svetlana Kuznetsova.
The American, who won Roland Garros in 2002, hasn't played much, but if she is fit and healthy, she can achieve everything. Serena has proved many times that she is a true champion. By winning this year's Australian Open, when only few people believed in her, she showed that we can still expect some great results from her. What we can say without a doubt is that Serena is entering the French Open with confidence.
The other candidate to make problems to Henin is Russia's Svetlana Kuznetsova. She defeated Henin in Berlin last week on clay. If she keeps her mental strength, world No. 3 can beat any player. She is fit, strong and moves well.
However, there are very few players that can challenge the Belgian in Paris. Amelie Mauresmo is struggling after a two-month break caused by her appendix operation, Maria Sharapova and Martina Hingis have both sustained injuries and are still not sure if they will play, Kim Clijsters has retired, while Venus Williams doesn't have much of a chance. (via ESPN)