Troup, a 2010 second-round draft pick out of Central Florida, spent the majority of the 2011 season on IR, as well, with a small fracture and a disk problem in his back. He underwent spinal fusion surgery late last year to fix the issues, and though he made it far enough back to practice some this summer, he could not practice enough to be reliably counted on for game days - and admitted to being in significant pain ever since the surgery.
Now, Troup will have an additional ten months to fully recover from his back injury. That is the first step for Troup: get completely healthy. If he gets there, we'll see him back on the field next summer competing for a roster spot in the fourth and final year of his rookie contract.
Buffalo's roster now has 85 active players. They'll need to jettison 10 players by 4PM next Monday, August 27 on the first day of league cuts.