Rafael Nadal beat Roger Federer 7-5 in an exhibition match Tuesday to warm up for the upcoming BNP Paribas Open in Indian Wells, California. Joining Nadal, the No. 1 player in the world, and Federer, who is No. 2, at the Clash of the Champions were Maria Sharapova and Victoria Azarenka, who also played a match at the University of Oregon's new $227 million basketball arena. More...