Factbox - U.S. Open finalist Novak Djokovic

(Reuters) - Factbox on Serbia's Novak Djokovic, who will play Switzerland's Stanislas Wawrinka in the final of the U.S. Open on Sunday. GRAND SLAM TITLES (12): Australian Open: 2008, 2011, 2012, 2013, 2015, 2016; French Open 2016; Wimbledon: 2011, 2014, 2015; U.S. Open: 2011, 2015 U.S. OPEN * Became the first man in the Open Era to reach a gram slam semi-final after three retirements or walkovers. Djokovic's nine sets and 84 games completed are the fewest en route to a semi-final at any major in