AP

The Browns added another quarterback to look at for the future, signing former Jim Harbaugh protege Josh Johnson.

To make room for him on the roster, they put safety Usama Young on injured reserve with a thumb injury that is expected to require surgery.

Johnson was a fifth-round choice by the Bucs in 2008, after a standout career at the University of San Diego, where Harbaugh was his head coach. He was with the 49ers in the preseason, but was part of their final cuts.

Based on his time with the Bucs, and the fact his old mentor didn’t want to keep him around, Johnson’s acquisition isn’t a sign of any major shifts in thinking at the position, but he is at least an arm with some degree of experience.

The Browns haven’t ruled out starter Brandon Weeden for the finale, but they did promote Thaddeus Lewis from the practice squad as well.