Sean 'P. Diddy' Combs watches semifinal match at the U.S. Open in New York

Sean 'P. Diddy' Combs with an unidentified girl watches Novak Djokovic of Serbia and Roger Federer of Switzerland play their semifinal match at the U.S. Open held at the National Tennis Center on September 10, 2011 in New York. UPI/Monika Graff