Dan Reeves established a substantial career in the National Football League (NFL) spanning nearly four decades, achieving significant success as both a player and a head coach. As a collegiate athlete, he became a three-year starting quarterback for the University of South Carolina from 1962 to 1964, concluding his career as the leading passer in Gamecock history at the time with 2,561 passing yards and sixteen touchdowns. His exceptional contributions earned him induction into the University of South Carolina Athletic Hall of Fame in 1977, followed by the State of South Carolina Athletic Hall of Fame in 2006. After college, Reeves signed as an undrafted free agent with the Dallas Cowboys in 1965.
His breakout NFL season in 1966 saw him lead the team in rushing with 757 yards and score 16 touchdowns (eight rushing, eight receiving), accumulating over 1,300 all-purpose yards, earning him a spot on The Sporting News All-Pro team. During his eight seasons with the Cowboys, Reeves contributed to their regular playoff appearances, two Super Bowl berths, and a victory in Super Bowl VI in 1972. He transitioned to a full-time assistant coach for the Cowboys in 1972, a position he held until 1980. His illustrious playing career was further recognized with his induction into the Texas Sports Hall of Fame in 2010.
Following his coaching career, Reeves remained active in the sport as a consultant for the Dallas Cowboys in 2009 and as an NFL analyst for Westwood One.