Michigan State is coming off a solid season on the defensive side of the ball.
That unit was aided by the presence of All-American middle linebacker Greg Jones.
He has graduated and other players must step up and fill his shoes.
The Spartan defense will be just fine, though.
The unit finished 2010 ranked 43rd in total defense and will be hoping to have even better results this season.
Who will be the most important players making up this season's defense?
Find out as we count down Michigan State's seven most important players on defense.