French Open Tennis 2012: Most Shocking Matches This Tourney

The men's final is the only match left to play at Roland Garros, but there has been no shortage of thrilling action throughout the tournament.

There have been upsets and incredible performances that have kept fans’ eyes glued to the clay courts in Paris.

Here are the four most shocking results from the 2012 French Open.

Paul-Henri Mathieu defeats John Isner

This contest delivered fans an early-round upset and a five-and-a-half hours long thriller of a match.

Mathieu was unseeded, but he outlasted No. 10 Isner in a fifth set that took 34 games to determine a victor.

This was the second time in recent years that Isner, known as the Marathon Man, locked himself in an epic battle. At Wimbeldon in 2010, he beat Nicolas Mahut in the longest match in tennis history.

Isner really should have done better against Mathieu, but this grueling match showed the true grit of both players involved. This was a thrilling result that captivated fans in Paris.

Virginie Razzano defeats Serena Williams

Heading into the French Open, Serena Williams had never lost an opening round match in a major tournament.

Absolutely no one could have predicted that the tournament's No. 5 seed, who has 13 career Grand Slam victories, would be defeated in her opening match by an unseeded opponent.

Nine times in the match, Williams was within two points of victory, as noted by FoxNews.com. This was a rare sports moment when those watching the match could not believe what was happening in front of their eyes.

There was no upset more shocking throughout the entire tournament.

Dominika Cibulkova defeats Victoria Azarenka.

Dominika Cibulkova is a solid player and very deserving of her No. 15 seed, but almost no one gave her a chance against top seed Victoria Azarenka.

For a No. 1 seed to not reach the quarterfinals, an incredible upset is required. This is exactly what Cibulkova delivered in the fourth-round match.

The second set went to extra games, and spectators expected Azarenka to push a third set and avoid a shocking defeat.

But the Slovak closed out her heavily favored opponent, pulling off one of the most incredible results of the tournament.

Sara Errani defeats Samantha Stosur

The women’s side of the French Open is always less predictable than the men’s bracket, but having a No. 21 seed in the finals is still an impressive result.

Errani took out No. 6 seed Samantha Stosur in three sets to reach the finals. She did not pull out a victory against Maria Sharapova, but she delivered an admirable overall performance at the 2012 French Open.

The Italian beat three players that were seeded higher than her on the way to the finals.

The semifinal upset capped off an inspiring run that was one of the biggest surprises of the tournament.