Only one time since the Heisman Trophy was first awarded back in 1936 has a primary defensive player ever won the Heisman Trophy.
That man was Charles Woodson from Michigan in 1997. There, the Wolverines went undefeated and won a share for the national title while Woodson returned 33 punts for 283 yards and one TD, as well as picking off eight passes.
Thing is, Woodson also played a decent amount of WR, catching 11 passes for 231 yards and scoring two TDs.
For a defensive player to win the Heisman, they must do more than strictly contribute on the "dark-side."
To that end, LSU's Tyrann Mathieu appears to be the next man who could win the Heisman as a primary defensive player.
Here are five things he needs to do to bring the trophy to Baton Rouge, LA. in 2012.