Although mostly sidelined for the first several years of his NFL career, Sipe was eventually recognized as one of the better quarterbacks in Browns history, winning the league's Most Valuable Player Award in 1980. He was a college football star under head coach Don Coryell at San Diego State University, where he studied architecture and became the team's quarterbacks coach in 2009, remaining in that role for five years, through 2014. He also competed in the 1961 Little League World Series for El Cajon, California, and prepped at Grossmont High School.