World number-one men's tennis player Lleyton Hewitt and defending champion Albert Costa have both scored tough, first-round wins at the French Open in Paris.
Hewitt was leading two sets to none and up a break against Brian Vahaly but the American bounced back to win the third set of their match. However, the Australian world number one eventually took the match in four sets, 6-4, 6-1, 6-7, 6-3.
Meanwhile, unseeded Argentine Sergio Roitman took defending champion Albert Costa of Spain to five sets in a match that lasted more than three-and-one-half hours. However, the Spaniard's experience and leg cramps got the best of Roitman and Costa won 6-7, 2-6, 7-5, 6-2, 6-2.
Costa's countryman and last year's runner-up, Juan Carlos Ferrero, had an easier time advancing, ousting Switzerland's Michel Kratochvil in straight sets, 7-5, 7-5, 6-4. Sixth-seeded American Andy Roddick was ousted from the tournament by Sargis Sargsian of Armenia in four sets, 6-7, 6-1, 6-2, 6-4.
Eighth-seeded David Nalbandian of Argentina defeated Albert Montanes of Spain, 6-4, 6-4, 4-6, 7-5. Twelfth-seeded Sjeng Schalken of the Netherlands beat Scott Draper of Australia, 6-2, 6-4, 3-6, 6-4. Number-15 seed and three-time champion Gustavo Kuerten of Brazil defeated Marc Rosset of Switzerland, 6-2, 6-7, 6-3, 7-6.
In other matches, Gaston Gaudio of Argentina defeated Paul-Henri Mathieu of France in straight sets, 7-5, 6-3, 6-3. Tim Henman of Britain ousted Vladimir Voltchkov of Belarus in straight sets, 6-2, 6-3, 6-1. Todd Martin of the United States advanced with a four-set win over Jose Acasuso of Argentina, 4-6, 6-3, 6-4, 6-2.
Another American, former champion Michael Chang of the United States, lost in three sets to Fabrice Santoro of France, 7-5, 6-1, 6-1. It was Chang's last match at Roland Garros - he is retiring from tennis after this year's U.S. Open.
In the women's draw, second seed Kim Clijsters of Belgium scored a straight-set win over American Amy Frazier, 6-2, 6-0. Third-seeded Venus Williams of the United States overcame a shaky start to reach the second round by beating countrywoman Samantha Reeves, 6-2, 6-4.
Former champion Jennifer Capriati of the United States defeated Joanette Kruger of South Africa, 6-2, 6-1. Sixth-seeded American Lindsay Davenport defeated Indonesia's Wynne Prakusya, 6-2, 6-0.
Jelena Dokic of Serbia-Montenegro, the 10th seed, defeated Angelika Roesch of Germany, 6-4, 6-4. But Elena Dementieva of Russia, the 13th seed, lost to Maria Sanchez Lorenzo of Spain, 6-3, 6-3.
Vera Zvonareva of Russia scored a straight-set win over Martina Muller of Germany, 6-1, 6-3. Tina Pisnik of Slovenia advanced with a straight-set win over Klara Koukalova of the Czech Republic, 7-6, 6-1. Iroda Tulyaganova of Uzbekistan reached the second round with a straight-set win over Antonella Serra Zanetti of Italy, 6-2, 7-5.