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At the 2011 Senior Bowl, offensive linemen were polled by Denver Post columnist Jeff Legwold on which pass-rusher gave them the most trouble.
The unanimous answer from the players was Purdue’s Ryan Kerrigan.
He had an incredibly productive career in the Big Ten and lived in opponents’ backfields. Though he may not be the best athlete on this list, he makes up for it with NFL size (6’4", 267 pounds), instincts, technique, and sheer relentlessness.
He does a great job anticipating the snap and is very quick to move up-field. Though he lacks fluidity and maneuverability, he’s extremely effective in pursuit due to his closing speed, variety of counter moves, awareness on the field, and secure wrap-up tackling.
He shows the ability to dip his shoulder and out-leverage blockers on the outside and has the quickness to beat interior linemen with his inside move, and does a nice job using his hands and will rip himself off blocks to disengage.
He’s capable of playing in most 4-3 schemes at either Left End or Right End and should enjoy a long career as an effective pass-rusher. The 3-4 Linebacker talk is premature, however, and I think he is a bit too linear to work out there. I expect him to come off the board somewhere in the late First Round but could fall due to schematic limitations.