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The Rams will have a new quarterback when they return to the field with Case Keenum taking over for Nick Foles in the starting lineup and they’ll also have several new faces on the offensive line.

St. Louis lost two linemen to season-ending injuries on the same play during last Sunday’s loss to the Bears. Guard Jamon Brown fractured his leg and tackle Darrell Williams dislocated his wrist while trying to tackle Bears linebacker Willie Young after an interception.

Coach Jeff Fisher said that tackle Isaiah Battle, who was added in the supplemental draft after he left Clemson, will be elevated from the practice squad and Jim Thomas of the St. Louis Post-Dispatch reports that veteran linemen Eric Kush and Brian Folkerts are also joining the team.

Kush was a sixth-round pick of the Chiefs in 2013 and has spent time with the Buccaneers, Panthers and Texans since being cut by Kansas City at the end of the preseason. Folkerts played 26 games with the Panthers in 2013 and 2014, but didn’t make the team out of camp this year.

Thomas also reports that the Rams have released defensive lineman Doug Worthington.