Walker Dwain Zimmerman is an American professional soccer player who plays as a center-back for Major League Soccer club Nashville SC and the United States national team. A native of Lawrenceville, Georgia, Zimmerman played two seasons in college with the Furman Paladins before signing a Generation Adidas deal with Major League Soccer. He was then selected in the 2013 MLS SuperDraft by FC Dallas as the 7th overall pick.