The Colts defense led the NFL in fewest points allowed (144, tying the then all-time league record), and ranked third in total rushing yards allowed (1,339), while also recording 29 interceptions (2nd in the league) and holding their opponents to an NFL-low 9 touchdown passes. Bubba Smith, a 6′7″ 295-pound defensive end considered the NFL's best pass rusher, anchored the line. Linebacker Mike Curtis, who intercepted two passes and recovered three fumbles, was considered one of the top linebackers in the NFL. Baltimore's secondary consisted of defensive backs Bobby Boyd (8 interceptions), Rick Volk (6 interceptions), Lenny Lyles (5 interceptions), and Jerry Logan (3 interceptions). The Colts were the only NFL team to routinely play a zone defense. That gave them an advantage in the NFL because the other NFL teams were inexperienced against a zone defense. (This would not give them an advantage over the upstart New York Jets, however, because zone defenses were common in the AFL and the Jets knew how to attack them.)Matt Snell, "Super Bowl III", Super Bowl: The Game of Their Lives, Danny Peary, editor. Macmillan, 1997.
The Colts defense led the NFL in fewest points allowed (144, tying the then all-time league record), and ranked third in total rushing yards allowed (1,339), while also recording 29 interceptions (2nd in the league) and holding their opponents to an NFL-low 9 touchdown passes. Bubba Smith, a 6′7″ 295-pound defensive end considered the NFL's best pass rusher, anchored the line. Linebacker Mike Curtis, who intercepted two passes and recovered three fumbles, was considered one of the top linebackers in the NFL. Baltimore's secondary consisted of defensive backs Bobby Boyd (8 interceptions), Rick Volk (6 interceptions), Lenny Lyles (5 interceptions), and Jerry Logan (3 interceptions). The Colts were the only NFL team to routinely play a zone defense. That gave them an advantage in the NFL because the other NFL teams were inexperienced against a zone defense. (This would not give them an advantage over the upstart New York Jets, however, because zone defenses were common in the AFL and the Jets knew how to attack them.)Matt Snell, "Super Bowl III", Super Bowl: The Game of Their Lives, Danny Peary, editor. Macmillan, 1997.