"I don't know. I really don't have the answer for that," Harbaugh said, via the team's official website. "I think he has a chance, yes. But whether it's to what degree, that's wide open right now. I don't know."
The 26th overall pick in the 2015 draft injured his knee the first day of training camp and hasn't been back more than five weeks later. The injury was initially characterized as a bruise by Harbaugh, but has since been reclassified as a sprain.
We don't expect Perriman to have a huge impact on the Ravens' offense out of the gate, even if he suddenly becomes healthy enough to play.