Cooper was a third-round pick of the Browns in the 2015 draft but never blossomed into the prospect that the team expected. In his rookie year, he had 19 tackles and 1.5 sacks. Last year, he finished out with 20 tackles and zero sacks while playing primarily on special teams.
The Browns didn’t have much room for Cooper after selecting Larry Ogunjobi and Caleb Brantley in this year’s draft. The 49ers, meanwhile, could use some additional defensive line depth after dropping Quinton Dial on Saturday.