By Ace Ramirez, EBC Correspondent, Washington DC Bureau The Citi Open Tennis tournament will showcase world-ranked tennis stars such as the 2016 defending champion Gael Monfils and three-time Champion Juan Martin del Potro. Crowd favorite Genie Bouchard, and Puerto Rico’s first and only Olympic Gold medalist Monica Puig also committed early to this tournament. Expected to pump up the heat and rock  the Rock Creek Park Tennis Center are American favorite, the giant John Isner, […]