Christensen's son, Toby Christensen, said his father passed away Wednesday morning at Intermountain Medical Center near his home in Alpine, Utah.
After a stellar career at running back for BYU from 1974-77, Christensen was a second-round pick for the Dallas Cowboys in the 1978 NFL draft.
He was waived by the Cowboys after training camp but landed the next year with the Raiders, where he played for 10 seasons at tight end and won two Super Bowls. After his retirement in 1988, he went on to a career in broadcasting and most recently worked for CBS Sports Network.
Christensen was born in Pennsylvania but moved to Eugene, Ore., as a child.
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