FILE - Green Bay Packers quarterback Scott Hunter warms up before their game against the Miami Dolphins, Aug. 12, 1972, in Miami. The Dolphins technically weren't undefeated in 1972, they were beaten during the preseason. Miami went 3-3 in the preseason that year, losing to Detroit, Green Bay and Washington. (AP Photo/Jim Bourdier, File)

FILE - Former Miami Dolphins head coach Don Shula walks along the sidelines prior to a football game against the Cincinnati Bengals, Sunday, Dec. 30, 2007, in Miami. Dick LeBeau has seen plenty in his football life. He spent six decades in the NFL as a player and coach. Made the Pro Football Hall of Fame. Helped the Pittsburgh Steelers win two Super Bowls as a defensive coordinator. And he helped beat the 1972 Miami Dolphins.(AP Photo/Lynne Sladky, File)

FILE - Tennessee Titans defensive coordinator Dick LeBeau watches as players warm up during an NFL football practice Wednesday, Jan. 10, 2018, in Nashville, Tenn. Dick LeBeau has seen plenty in his football life. He spent six decades in the NFL as a player and coach. Made the Pro Football Hall of Fame. Helped the Pittsburgh Steelers win two Super Bowls as a defensive coordinator. And he helped beat the 1972 Miami Dolphins. (AP Photo/Mark Humphrey, File)