The Big Ten is known for its defense, and a tough defense starts with the men up front.
Michigan's Brandon Graham and Ohio State's Thaddeus Gibson have moved onto the NFL, and top linemen like O'Brien Schofield, and Jared Odrick are also gone.
But that doesn't mean the Big Ten isn't still stocked with defensive line talent.
Iowa returns all of its very talented line from last year. Hawkeye Adrian Clayborn and Ohio State's Cameron Heyward return for their senior campaigns despite the millions they would have received in the NFL.
The league also returns its sack leader in Purdue's Ryan Kerrigan.
With the talent returning, the conference should have some of the top D-linemen in the nation this fall. Here is the top 10, with a few dark horses on the outside.