Former Miami Dolphins running back Jim Kiick has died at age 73.
A member of the NFL's only undefeated team in 1972, Kiick was a two-time Super Bowl champion, helping the Dolphins win back-to-back titles in 1972 and 1973. He was previously an AFL All-Star in 1968 and 1969.
After seven seasons in Miami's backfield with fullback Larry Csonka, Kiick spent time with the Denver Broncos and later joined Washington with a stop in Memphis in 1975 as a member of the now-defunct World Football League's Southmen.
Kiick rushed for 3,759 total yards on 1,029 career carries with 29 touchdowns.