Wagner, who recorded interceptions in the Steelers' first two Super Bowl victories, was an integral part of four championship teams during the 1970s. Drafted in the 11th round of the 1971 NFL Draft, he started at safety as a rookie and went on to notch 36 interceptions and earn two Pro Bowl nods over his 10-year career.
Steelers owner Art Rooney II praised Wagner's toughness and consistency, stating his contributions on the field were significant but it was his steady presence and team-first mentality that truly defined him. No cause of death was provided.