Here’s a look at the top 10 defensive linemen in the NFL draft:

1. Sharrif Floyd, 6-foot-3, 329 pounds, Florida (projection: first round): He was named the 2009 Maxwell Football Club national high school player of the year. While his stats at Florida were subpar, NFL scouts like his combination of speed and agility for a big man.

2. Star Lotulelei, 6-2, 311, Utah (first): He had a strong showing at his Pro Day after a heart condition kept him from working out at the NFL combine. Lotulelei lifted 225 pounds 38 times, according to NFL.com draft analyst Gil Brandt. The 38 reps would have tied SMU's Margus Hunt and Missouri Southern State's Brandon Williams for the most by any defensive lineman at the combine.

3. Ezekiel Ansah, 6-5, 271, BYU, (first): He is very raw. He didn't start playing football until 2010. Some have compared him with Jason Pierre-Paul of the New York Giants.

4. Bjoern Werner, 6-3, 266, Florida State (first): The Germany native was introduced to the game when he was an exchange student in Connecticut. He returned home to Berlin, but later came back to the United States to continue playing the game.

5. Sheldon Richardson, 6-2, 294, Missouri (first): He ran a blazing 4.81 seconds in the 40-yard dash at Missouri's Pro Day. Richardson was rated as the top defensive lineman in the nation coming out of high school, but had to start his career in junior college.

6. Sylvester Williams, 6-3, 313, North Carolina (first): Worked in a factory before deciding to walk on at Coffeyville (Kan.) Community College. Transferred to North Carolina and developed into an NFL prospect.

7. Damontre Moore, 6-4, 250, Texas A&M (late first, second): He was considered a top-five pick before a poor showing at the NFL scouting combine caused his stock to fall. Some consider him a one-year wonder in college.

8. Tank Carradine, 6-4, 276, FSU (late first, second): He is a pass-rushing defensive end who's battling back from ACL knee surgery. He moved to Houston after the season in order to train with Russ Paine of IronMan Sports Medical Institute. Paine supervised Minnesota Vikings running back Adrian Peterson's dramatic recovery from a similar injury last season.

9. Datone Jones, 6-4, 283, UCLA (late first, second): He was a very active and disruptive force for the Bruins. "Jones' inconsistency prompted wide-ranging grades from evaluators, but he has impact potential," according to Pro Football Weekly's Nolan Nawrocki, who called Jones a "boom or bust pick."

10. Margus Hunt, 6-8, 277, SMU (late first, second): The native of Estonia is massive and has slowly developed. He blocked 17 kicks, two short of the NCAA record. Last season he had 31 tackles, 11.5 tackles for loss, eight sacks and one interception as an first-team All-Conference-USA pick.