Perriman, the No. 26 overall pick, sprained his posterior cruciate ligament on the first day of training camp, aggravated the injury before the Sept. 27 game against the Bengals, and underwent arthroscopic surgery in early October.
He never played a snap in the regular season, but he provided drama on an almost weekly basis. The Ravens initially announced Perriman had a bruised knee and would return in a couple of days. It was later revealed that he had sprained his knee, but there was never any definitive timetable given. Now, he becomes the first Ravens first-round pick not to play a regular-season game in his first season.
"He's had probably one of the all-time slowest-healing sprained PCLs ever," Harbaugh said in early October. "That's nothing against him. It's just the way it is."
The injury to Perriman has been magnified by the loss of Steve Smith Sr., whose season ended last game with a torn Achilles tendon. Baltimore's starting wide receivers are Kamar Aiken and Chris Givens.
The Ravens will also be looking for a new returner after releasing Jeremy Ross and placing Asa Jackson (ankle) on injured reserve. Baltimore filled those roster spots by signing wide receiver Kaelin Clay, tight end Chase Ford and cornerback Cassius Vaughn.