Steelers place Brett Keisel on injured-reserve, sign DE Clifton Geathers

Brett Keisel officially placed on season-ending IR. Steelers sign Clifton Geathers to take his place. Sixth team in 5 seasons for Geathers.

— Chris Adamski (@C_AdamskiTrib) December 1, 2014

The Pittsburgh Steelers have officially placed Brett Keisel on the injured-reserve list after injuring his triceps in the 35-32 loss to the New Orleans Saints on Sunday.

The move leaves the organization extremely thin along the defensive line. To fill Keisel's roster spot, the team announced the signing of DE Clinton Geathers.

Geathers is known as a journeyman player, playing for six teams since being drafted by the Cleveland Browns in the sixth round of the 2010 draft. His large frame (6-foot-8, 325 pounds) will help fill the physical void left by Keisel, but within the locker room and even on the field Keisel's loss will loom large over this defensive unit.

Although the extent of the injury is not known, Keisel's age certainly begs the question of whether he'll return next season, or if this injury is the last page in the tremendous story that is Keisel's career with the Pittsburgh Steelers.