Ronald Dayne (born March 14, 1978) is a former professional American football running back who played in the National Football League (NFL) for eight seasons. Dayne played college football for the University of Wisconsin and won the 1999 Heisman Trophy. He was a first round pick of the New York Giants in the 2000 NFL Draft and also played for the Denver Broncos and Houston Texans during his 7-year NFL career.