All eyes are on No. 1 ranked Serena Williams at the 2015 U.S. Open, as she attempts her first calendar year Grand Slam. On top of advancing to the next round Monday, Williams also revealed her new Greatness Collection of sneakers for NIKE. But while we know her tennis skills are nothing to mess with, can she win on the fashion front? We take a closer look at her NYC wardrobe choices… including an outfit repeat!