Bills ORG Kraig Urbik has been placed on injured reserve, and the team has signed OG Chad Rinehart from its practice squad.
Urbik started two games this season but suffered a knee injury in the team's Week 12 loss to the Vikings.
Rinehart, a three-year NFL vet, played four games for the Redskins in 2009 and was on the Washington practice squad in '08.
The way we see it
Buffalo's offensive line has been inconsistent this season, so adding a new piece just adds to the disarray. Center Geoff Hangartner is also hurt with a knee injury and could wind up being placed on I.R., as well.