Swiss tennis champion Roger Federer (L) and Spanish world number one Rafael Nadal pose with Spanish singer David Bisbal prior to a charity exhibition match at La Caja Magica on December 22, 2010 in ... more 
Swiss tennis champion Roger Federer (L) and Spanish world number one Rafael Nadal pose with Spanish singer David Bisbal prior to a charity exhibition match at La Caja Magica on December 22, 2010 in Madrid. Organized by the Rafa Nadal Foundation, this friendly match aims to raise funds in benefit of children with disabilities and youngsters coming from underprivileged communities. Nadal won 7-6, 4-6, 6-1. AFP PHOTO/ ALBERTO SIMON (Photo credit should read Alberto Simón/AFP/Getty Images) less 
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Getty Images | Photo By ALBERTO SIMóN / AFP/Getty Images
Wed, Dec 22, 2010 5:20 PM EST