The Ravens currently have a little more than $9 million in salary-cap space, according to Spotrac, but they want to put that to use in other areas. They could still sign another receiver or a pass-catching tight end.

The expectation has been that the Ravens would likely take a quarterback at some point in this year's draft, which they haven't done since taking sixth-round pick Keith Wenning in 2014, but Harbaugh indicated that's not a guarantee.

"That will be interesting to see because I don't know. We don't know," Harbaugh said about the backup spot. "It could go rookie. It could go Josh Woodrum. It could go veteran."

Woodrum, 25, spent last year on Baltimore's practice squad. The Liberty University product earned a spot on the practice squad after impressing during the preseason.

He went 25-of-36 passing for 321 yards with two touchdowns and no interceptions. He also ran 16 times for 42 yards and a pair of scores.

He showed promise in his preseason outings, and the Ravens plan to give him a good look this offseason and in training camp.