There may not be too many odds-on favorites to take the title in Paris, but that doesn’t mean the second major of the year will be boring. Check out the dark horses who are most likely to make waves this fortnight.

The Serbian Sisters

Ana Ivanovic and Jelena Jankovic are two of the small crop of current players to boast a win against Serena Williams in a Grand Slam event. Although the pair have endured their struggles since sitting on top of the proverbial WTA mountain, both come into Paris riding a decent wave of momentum. Although both players have not managed to sustain the level of tennis that saw them produce a classic French Open semifinals in 2008, they each made the semifinals in Rome. While Jankovic is responsible for the two Grand Slam semifinal showings for the pair over the last six years, both Serbs are capable of playing their best tennis on the European red clay. Ivanovic’s all-out attack and Jankovic’s counterpunching make matches featuring one or the other contrasting theater, but they certainly know what it takes to reach the final stages of a major championship. While Jankovic has secured a top-10 seed, Ivanovic sits just on the outside at No. 11. With the way they've been playing of late, there might be a chance of an all-Serbian clash at the business end of Roland Garros once again.

Carla Suarez Navarro

The WTA's perennial bridesmaid was never short on talent, but the Spaniard finally came good in a final this spring with a win over former Roland Garros winner Svetlana Kuznetsova to claim her first singles title in Oeiras. Suarez Navarro is a veritable bracket buster, and while she's had big wins on all surfaces, clay is where she's most at home. She made her WTA breakthrough with a run to the French Open quarterfinals in 2008 and seems poised for a similar run nearly six years later. She doesn't seem the type to take a major title, but she's downright Schiavonesque at her best, and that's a vibe that could pay off at a Grand Slam tournament.

Samantha Stosur

While the Australian has struggled to put together consistent results in the 2014 season, Stosur’s kicking serve and topspin forehand can never be counted out at Roland Garros. She recorded a 6-4 6-0 win over Dominika Cibulkova in Madrid and played perhaps one of her best matches of the year against Maria Sharapova, despite losing against her. Stosur again reached the third round in Rome, where she lost to Li Na after “upsetting” (on paper) the seeded Sabine Lisicki in the opening round. Stosur holds a 24-10 win-loss record at Roland Garros, by far her most successful percentage at any major despite being a US Open champion. The Aussie will be seeded at least No. 19 in Paris, meaning she’d be drawn to meet a higher-seeded player as early as the third round and a top-10 player in the fourth. However, given Stosur’s clay-court pedigree, no top player wants to see the Aussie in her section, no matter her form.

“Corgi”

If you think they're entertaining against each other, watching Alizé Cornet and Camila Giorgi apart is a double feature of tennis extremes. Cornet is in the midst of a career renaissance after failing to replicate the success she had as a teen. The Frenchwoman, known for her ups and downs in a single match, has been surprisingly consistent at the majors, reaching the third round at each of the last four and pushing Victoria Azarenka to three sets at two of them. At the Australian Open, she edged out rival Giorgi, who has begun to balance her red-line game with a much-needed dose of mental toughness. Coming off her first final appearance in Katowice, the Italian got her revenge on Cornet in the first round of Strasbourg and showed impressive maturity to consolidate the upset less than 24 hours later. Regardless of whether the two meet at Roland Garros, they're a dynamic duo worth watching in the early rounds.