9 things to know about surprise U.S. Open finalist Kei NishikoriKei Nishikori stunned world No. 1 Novak Djokovic in a U.S. Open semifinal on Saturday, a shock win that came on the heels of Nishikori’s two five-set, four-hour marathons earlier this week. Though the 24-year-old Japanese player is well known to tennis fans, he’s mostly anonymous to the American public. Let’s get to know the surprise U.S. Open finalist. 1. Nishikori is the first Asian man to make
