Flushing Meadows, NY (Sports Network) - Red-hot Rafael Nadal was an easy first-round winner on Day 1 at the 2013 U.S. Open.
The second-seeded former world No. 1 star whipped struggling American Ryan Harrison, 6-4, 6-2, 6-2, in 2 hours, 6 minutes at Arthur Ashe Stadium on the grounds at the USTA Billie Jean King National Tennis Center.
Nadal captured his lone U.S. Open title in 2010 and was the runner-up in 2011. He missed last year's Open because of a knee injury.
The 27-year-old Spanish great is now 16-0 on hardcourts this year, including recent back-to-back Masters titles in Montreal and Cincinnati.
Nadal is the reigning French Open champ who suffered a shocking opening- round loss against unheralded Belgian Steve Darcis at Wimbledon back in June.
Meanwhile, eighth-seeded nifty Frenchman Richard Gasquet drubbed American journeyman Michael Russell, 6-3, 6-4, 6-2.
A substantial Day-1 upset came when British qualifier Daniel Evans stunned 11th-seeded Japanese Kei Nishikori, 6-4, 6-4, 6-2, in 1 hour, 57 minutes. Nishikori, a third-round loser in New York a year ago, titled in the United States, in Memphis, back in February.
In other action involving seeds, No. 23 Spaniard Feliciano Lopez overcame Frenchman Florent Serra 6-7 (4-7), 6-2, 6-3, 6-3 and No. 32 Russian Dmitry Tursunov beat Slovenian Aljaz Bedene 7-5, 4-6, 6-3, 6-0.