Spain's Nadal looks hampered by knee injury in pre-Wimbledon exo.
London, Jun 18, 2009 (EFE via COMTEX) -- Spanish tennis star Rafael Nadal lost a pre-Wimbledon exhibition match here Thursday to Australia's Lleyton Hewitt and showed signs that he has not fully recovered from lingering knee problems.
The world No. 1, who said after his shocking early-round defeat at this year's French Open that he has been battling tendonitis in both knees, was visibly slower than usual during the 6-4, 6-3 loss to Hewitt.
The Spaniard said afterward on his Web site that he will make a decision about his participation at Wimbledon - where he is the defending champion - after another exhibition match against Switzerland's Stanislas Wawrinka …