Like the Colts, the Cowboys' main strength was their defense. Nicknamed the "Doomsday Defense", they allowed just one touchdown in their last six games prior to the Super Bowl. Their line was anchored by future Hall of Fame defensive tackle Bob Lilly. Behind him, linebackers Lee Roy Jordan, Dave Edwards, and Chuck Howley excelled at stopping the run and pass coverage. The Cowboys had an outstanding secondary, led by Mel Renfro and Herb Adderley, who combined for seven interceptions. Dallas also had two rookie safeties: Cliff Harris and Charlie Waters, who led the team with five interceptions, while Harris recorded two.