World number one Nadal battles into last 16 at Wimbledon

Rafael Nadal of Spain celebrates the victory after his second round match of men's singles against Robin Haase of Netherlands at the 2010 Wimbledon Tennis Championships in London, Britain, June 24, 2010. Nadal won 3-2.LONDON, June 26 -- World number one Rafael Nadal battled for five sets to advance into the round of last 16 at the Wimbledon Championships on Saturday.Nadal, 24, couldn't split up