Six months ago, I watched and live-blogged a terrific tennis match between Roger Federer and Janko Tipsarevic. Though my rooting interest was on the side of Federer, the eventual winner, I couldn't help but be impressed by the fire and ability of Tipsarevic, the 24-year-old Serbian who pushed the world's number one player to the limit before falling in a fifth set tiebreak. This afternoon, I ...