2004 French Open – Men's singles
Gastón Gaudio defeated Guillermo Coria in the final, 0–6, 3–6, 6–4, 6–1, 8–6 to win the men's singles tennis title at the 2004 French Open. Gaudio became the first Argentine to win a major since Guillermo Vilas at the 1979 Australian Open. Gaudio came back from two sets to love down, saved two championship points, and broke Coria's serve twice when the latter served for the championship. Juan Carlos Ferrero was the defending champion, but lost in the second round to Igor Andreev, his first loss at the French Open prior to  the semifinals. This was the first major where Roger Federer competed as the world No. 1. He lost in the third round to former No. 1 and three-time champion Gustavo Kuerten, in his last pre-quarterfinal exit from a major until the 2013 Wimbledon Championships, a run of 36 quarterfinals or better in a row. Until the 2020 US Open, this was the last major without any of the Big Three players in the quarterfinals. This was also the most recent French Open not to feature future thirteen-time champion Rafael Nadal, who withdrew prior to the tournament due  to an ankle injury sustained in Estoril in mid-April. This was the first major in the Open Era to feature four Argentines in the quarterfinals, those being Gaudio, Coria, David Nalbandian, and Juan Ignacio Chela. Until the 2017 Australian Open, this would be the last major where the top two seeds failed to reach the quarterfinals. Alongside Federer's loss to Kuerten, number two seed Andy Roddick lost in the second round to Olivier Mutis. The first round match between Fabrice Santoro and Arnaud Clément was the longest match of the Open Era in 6 hours and 33 minutes  under two days. John Isner and Nicolas Mahut would later break this record during their first-round singles match at the 2010 Wimbledon Championships.