The Ravens have signed first-round pick C.J. Mosley, finalizing a four-year deal with the inside linebacker worth $8.787 million on Tuesday.

The deal includes a standard fifth-year option and a $4.711 million signing bonus.

With Mosley's deal done, that leaves third-round pick Terrence Brooks, a safety out of Florida State, as the team's only unsigned draft pick.

Mosley -- one of the top inside linebackers in the draft and aplayer the Ravens were pleased to see still on the board at No. 17 -- is expected to challenge second-year player Arthur Brown for the starting weak-side linebacker role alongside Daryl Smith.