Finally, Ravens wide receiver 
Perriman did not need reconstructive surgery on his ACL today, Head Coach John Harbaugh confirmed. He instead received just a stem cell injection in his left knee, per NFL Media’s Ian Rapoport and ESPN’s Adam Schefter.
It’s the best possible outcome after it was feared that Perriman could be lost for the entire season. The Ravens offense will still wield a pair of speed threats in Perriman and veteran Mike Wallace.
“That was great news,” Harbaugh said. “I’ll say this: many, many strong prayers were answered on that. Let’s give credit where credit is due. Faith wins.”
Harbaugh said the knee just needs treatment and that Perriman “should be back at some point during training camp, and will certainly be ready for the regular season.”
Training camp opens in late July and the Ravens kick off the regular season in about three months against the Buffalo Bills.
After a medical re-check on Monday gave a glimmer of hope, Perriman underwent an arthroscopic procedure with Dr. James Andrews on Tuesday. Andrews performed a minimally invasive procedure to check the severity of the injury and determined the knee was stable enough to avoid reconstructive surgery.
Perriman isn’t completely out of the woods yet, however. He had trouble bouncing back from a knee injury during his rookie season.
The 2014 first-round pick suffered a partially torn PCL in his right knee last year in training camp, and was slow to get back on the field. After re-aggravating the injury in the regular season, the Ravens eventually placed him on injured reserve. Perriman also received a stem cell injection last year to help the rehabilitation.
“Again, that’s always unpredictable,” Harbaugh said. “I think we’ve been down this road before. We’ll continue to just work hard and do that.
“He’ll have to go to work for the next couple of months and get himself in shape and have to overcome this to get ready for training camp. When he’s back, he’ll be back and he’ll be rolling. We’re really excited for him on that account.”
