The rookie, who was the 26th overall pick in the 2015 draft, reaggravated his knee in pregame warmups Sunday against the Bengals. Perriman reportedly underwent arthroscopic surgery this week with Dr. James Andrews.
During warmups, Perriman stopped after running for a deep pass in the end zone. He limped around afterwards and didn't partake in any more routes.
Perriman had been out since sustaining a knee sprain on the first day of training camp, forcing him to miss eight weeks of practice. Perriman sat outTuesday.
At Central Florida last season, the 6'2'', 212-pound wide receiver had 50 catches for 1,044 yards and nine touchdowns.
The Ravens (0-3) play the Pittsburgh Steelers (2-1) on Thursday night at Heinz Field.
- Beth Maiman