With Shaquille O'Neal's retirement, his accomplishments and impact on the game have been shoved down our throats ad-nauseum.
O'Neal brought the center position into the 21st century, having had an impact on the game that many players wish to have.
As Shaq closes the curtain on an illustrious career, we turn to the NFL to find five players who have had an impact on football like O'Neal had on basketball.
These players are all close to retirement (or one special exception who recently retired), like Shaq, and have made a big difference.
Note: I figured I couldn't put a running back like LaDanian Tomlinson on here, because the NFL is moving to a two-back system.