2011 NFL Draft: Ranking top 50 prospects heading into combine
defensive linemen will be stars of the show come April
DL Christian Ballard, QB Colin Kaepernick among rising prospects

A.J. Green has the size (6-4, 212 pounds) and athleticism to be a top 5 pick in April.
Simon Bruty/SI
One week before the NFL Scouting Combine begins in Indianapolis and it's time to revisit the draft board. Several players improved their grade with impressive performance at events such as the Senior Bowl and Shrine Game. Others were passed by and now rank lower. Once again it looks like the first two rounds will be heavy with quality defensive line prospects. Twenty-one players who can make a living on the defensive line grace our top 50, a number that's sure to stand out in April.
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