[2] Claphan played on the 1974 and 1975 National Championship teams and was the starting lineman for the Oklahoma Sooners from 1975 to 1978.
He was selected in the second round of the 1979 NFL draft (47th overall pick) by the Cleveland Browns but failed to make the roster due to a preseason injury.
[3] He was a starting offensive tackle for the San Diego Chargers, protecting the blind side of Hall of Fame quarterback Dan Fouts.
Claphan, a Cherokee, was inducted into the American Indian Athletic Hall of Fame in 1994.
This biographical article relating to an American football offensive lineman born in the 1950s is a stub.