Outside linebacker Sergio Kindle was retained by the Ravens with an exclusive-rights tender. The former second-round draft pick barely played last year, but is now a few years removed from fracturing his skull when he fell down two flights of stairs prior to his rookie season.
He suffered permanent hearing damage to one ear and also nerve damage.
“Well, it’s Sergio’s first offseason, so it’s going to be very valuable for him,” Harbaugh said. “We’re looking for big improvement.
“He’s coming from a major injury where he had severe nerve damage to being a productive player in the NFL. I think what the Ravens did to facilitate that is unparalleled in the NFL. I don’t know anybody that has stuck with a guy through this kind of off-field injury in the history of the NFL.
“If he comes back and becomes a player in the NFL, it’s going to be an unparalleled accomplishment. But you know what? We think it can happen and we’re going to know by the end of training camp. I’m really hopeful that he can get it done and I’m excited if he can because he’s really a talented guy and he’s a good guy.”