Clash of the champions.

Tomorrow afternoon, Roger Federer and Rafael Nadal will once again go head-to-head in a tournament final. This time it is for the Roland Garros grand slam tournament.

Roger Federer is still looking for that first Roland Garros title in his career. The only grand slam tournament championship that doesn't appear in his trophy case. Should Federer manage to beat his arch-rival tomorrow, he will join a very select club of legends such as Andre Agassi, the last player to win all four grand slam titles during his career.

On the other side of the court, Rafael Nadal, king of clay surfaces. He will defend his double Roland Garros championship tomorrow. Only this time, there may be some doubt in Nadal's head. He might not feel totally invincible this time because Federer ended his awesome winning streak on clay a few weeks ago during the Hamburg tournament finals.

The stakes are high and this will probably be an excellent and exciting matchup to watch.