The Chicago Bears have signed offensive lineman Mike Adams and waived offensive lineman Nick Becton.

Adams sat out last season with a back injury after making 20 starts with the Pittsburgh Steelers from 2012-2014. Becton has appeared in six games for the San Diego Chargers (2013), New Orleans Saints (2014) and Chicago Bears (2015).

The Bears announced the moves Wednesday. Chicago hosts Denver in the preseason opener on Thursday.