Abraham is being evaluated for a concussion, and he's questionable to return to Monday's game against the Chargers, the Arizona Repbulic's Kent Somers reports. Abraham hit his head on a San Diego lineman while trying to get around the edge on a pass play. If the concussion is confirmed, he'll miss the rest of Monday's game, and then be subject to the NFL's concussion protocol. Sam Acho and/or Tom Keiser figure(s) to see added playing time in Abraham's absence.