Super Bowl X Super Bowl X Super Bowl X was an American football game between the National Football Conference (NFC) champion Dallas Cowboys and the American Football Conference (AFC) champion Pittsburgh Steelers to decide the National Football League (NFL) champion for the 1975 season. The Steelers defeated the Cowboys by the score of 21–17 to win their second consecutive Super Bowl. They were the third team to win back-to-back Super Bowls. (The Miami Dolphins won Super Bowls VII and VIII, and the Green Bay Packers won Super Bowls I and II.) It was also the first Super Bowl in which both participating teams
Super Bowl XLV The secondary was led by pro bowl safety Troy Polamalu, who won the NFL Defensive Player of the Year Award, tying his career-best seven interceptions and returning them for 101 yards and a touchdown. Coach Mike Tomlin, already the youngest coach to ever win a Super Bowl, became the youngest coach ever to make it to the Super Bowl twice at age 38. The Pittsburgh Steelers had also accomplished going to the Super Bowl in five different decades; and, in every decade since the post AFL-NFL merger. 1970s: 1975, 1976, and 1979. 1980s: 1980. 1990s: 1996. 2000s: 2006 and 2009.