Dolphins receiver Howard Twilley died Wednesday, the team announced. He was 81. No cause of death was given. "We are deeply saddened by the passing of Howard Twilley, a founding player for the Dolphins in 1966.

Twilley was runner-up for the Heisman Trophy during his time at Tulsa before he was picked by the Dolphins in the 12th round of the 1966 AFL draft. While he was also selected in 14th round of the NFL draft by the Minnesota Vikings, Twilley chose Miami where he spent his entire 11-year professional career.

Howard Twilley, a key receiver for the Miami Dolphins during the team’s perfect 1972 season and a Heisman Trophy runner-up at the University of Tulsa, has died. He was 81.