LONDON - JUNE 12: Rafael Nadal of Spain slips during his match against Kei Nishikori of Japan on Day 4 of the Artois Championships at Queen's Club on June 12, 2008 in London, England. (Photo by Julian Finney/Getty Images)
LONDON - JUNE 12: Rafael Nadal of Spain slips during his match against Kei Nishikori of Japan on Day 4 of the Artois Championships at Queen's Club on June 12, 2008 in London, England. (Photo by Julian Finney/Getty Images)