INDIAN WELLS, Calif. -- World No. 1 and top seed Rafael Nadal was an easy second-round winner Saturday at the $4.5 million BNP Paribas Open, the first ATP Masters event of the year.
Nadal, the reigning U.S. Open, Wimbledon and French Open champion, topped Rik De Voest of South Africa 6-0, 6-2. Next up for the two-time champion Nadal is American Ryan Sweeting, who was a 6-1, 0-6, 6-1 winner over Juan Monaco of Argentina.
World No. 4 Robin Soderling, seeded fourth, capped the day's matches with a 6-3, 7-6 (7-4) win over Michael Berrer of Germany on the hardcourts at Indian Wells Tennis Garden.
There were plenty of upsets in Saturday's matches, including the ouster of the defending champion when Argentina's Juan Martin Del Potro topped 14th seed Ivan Ljubicic of Croatia 5-7, 6-4, 6-2.
Ljubicic upset Andy Roddick in last year's finale.
Among the other upsets, fifth-seeded Brit Andy Murray was topped by American Donald Young 7-6 (7-4), 6-3; and sixth-seeded David Ferrer of Spain fell to Croatia's Ivo Karlovic 7-6 (7-3), 6-3.
Ninth-seeded Fernando Verdasco of Spain was ahead 7-5, 2-0 when Lithuania's Richard Berankis retired in the second set.
Another Spaniard, 11th-seeded Nicolas Almagro, was a 6-4, 6-4 winner over American qualifier Michael Russell, but the next three highest seeds in action all fell.
Del Potro topped Ljubicic; Belgium's Xavier Malisse knocked off 15th seed Jo- Wilfried Tsonga of France 7-6 (8-6), 7-5; and 19th seed Marcos Baghdatis of Cyprus was topped in straight sets by qualifier Somdev Devvarman of India 7-5, 6-0.
Other second-round wins came from Ukrainian Alexandr Dolgopolov, American Sam Querrey, Spaniards Albert Montanes and Tommy Robredo, France's Gilles Simon and Germany's Philipp Kohlschreiber.
This year's winner of the 11-day tournament will collect $611,000.
