Getty The Bears have re-signed Chris Williams. The Chicago Bears announced they’ve retained several key players , re-signing them with both Exclusive Rights Free Agents (ERFAs) and Restricted Free Agents (RFAs). The Bears signed defensive lineman Chris Williams as an RFA, also inking the following players to ERFA deals: DL Jonathan Ford, DL Daniel Hardy, OL Bill Murray and DB Ameer Speed. An RFA designation can be given to players who have three accrued seasons (six or more games on the active