Former French Open champion Andre Agassi suffered a stunning first-round defeat at the hands of qualifier Jerome Haehnel today.
The sixth-seeded Agassi was shocked by the 23-year-old French player, ranked 271st in the world, and lost 6-4 7-6 (7/4) 6-3.
This was Haehnel's debut in the main draw at Roland Garros and he was consistently too strong for the 34-year-old American, winning in just over two hours.
Agassi made a slow start in the match before recovering his game to an extent in the second set, forcing the tie-break.
But his sprightly and hard-hitting opponent raised his game up a notch and converted the first of his two set points with a powerful serve which Agassi failed to return into court.
Agassi found himself in trouble in the third set when he faced two break points early on, and a double fault let the young Frenchman lead 3-1.
It was not plain sailing for Haehnel, however, as Agassi fought back to level at 3-3. But the home hero had come so far that he was not prepared to lose his grip on the match and three successive games secured the most famous victory of his otherwise unremarkable career.
The much-fancied Guillermo Coria had no such problems. The Argentine, who recently saw his run of 31 consecutive claycourt wins ended, thrashed Nikolay Davydenko 6-4 6-2 6-0.
Fifth seed Carlos Moya needed four sets to get rid of Dutchman John van Lottum. The 1998 French Open champion, who has won 23 matches on clay this season as well as two titles including the Rome Masters Series two weeks ago, took two hours and 22 minutes to oust his opponent 6-3 6-4 3-6 6-2.
In the women's singles, world number one and defending champion Justine Henin-Hardenne cleared the first hurdle by defeating French veteran Sandrine Testud in straight sets. The 21-year-old got rid of her 32-year-old rival 6-4 6-4 in one hour and 27 minutes.
Afterwards, the Belgian was in confident mood, saying: "I can't say that I am at 100 per cent but I think that my current form is enough to have plenty of hope.