Should Campbell pass through waivers unclaimed, he would revert to the team’s injured reserve list on Saturday.
Smith, 25, is a former sixth-round pick of the Bengals back in 2015. Cincinnati elected to cut him loose last week and he later signed on to their practice squad a few days ago.
In 2017, Smith has appeared in three games and recorded one tackle for the Bengals.
Campbell, 25, is a former fourth-round pick of the Browns back in 2015. He’s currently in the third year of his four-year, $2,792,008 contract and stands to make base salaries of $615,000 and $705,000 over the final two years of the agreement.
In 2017, Campbell has appeared in eight games and recorded 16 tackles, one fumble recovery and a pass defense for the Browns.