Roger Federer and Andy Roddick have met 22 times overall and in four Grand Slam finals, including a 16-14 fifth set at Wimbledon in 2009. Now they're taking their rivalry to a new venue: Madison Square Garden. Federer and Roddick will play a best-of-three-sets match as part of the annual BNP Paribas Showdown exhibition March 5, which also will include Maria Sharapova against top-ranked Caroline... More...