US Open Tennis Championship in New York Day 8

Kei Nishikori walks in to Louis Armstrong Stadium before his match against Juan Martin Del Potro on day eight at the U.S. Open Tennis Championships at the U.S. National Tennis Center in Flushing Meadows, New York on September 1, 2008. Del Potro defeated Nishikori 6-3 6-4 6-3. (UPI Photo/John Angelillo)