Pittsburgh Steelers DT “Mean Joe” Greene leaps to block a pass by San Diego Chargers QB John Hadl on Oct. 3, 1971. The 1969 NFL Rookie of the Year, 1972 and ‘74 Defensive Player of the Year, Greene made 10 Pro Bowls during his entire 13-year career with Pittsburgh. The Hall of Fame "cornerstone of the Steel Curtain," who helped lead the Steelers to four Super Bowl victories, turned 69 years old on Sept. 24, 2015. (Neil Leifer for SI)
GALLERY: Classic SI Photos of "Mean" Joe Greene
















