Chad Ruhwedel suffered a concussion when he was hit by Philadelphia's Zac Rinaldo at the 4:29 mark of the third period on Sunday.
Chad Ruhwedel was called up from the minors on Saturday March 15.
Chad Ruhwedel stayed with the Sabres in Carolina even though he was returned to AHL Rochester before Thursday's game.
Chad Ruhwedel was called up on an emergency basis after Alexander Sulzer was injured, so he could be on his way back to the minors.
Chad Ruhwedel was called up from the minors on Sunday.
Chad Ruhwedel has been sent to AHL Rochester.
Chad Ruhwedel will make his season debut with the Sabres on Saturday night.
The Buffalo Sabres have summoned Chad Ruhwedel.
Chad Ruhwedel has been returned to AHL Rochester.
Buffalo has promoted Chad Ruhwedel.
Chad Ruhwedel has been demoted to the minors.
Chad Ruhwedel has been fairly quiet on the ice since joining the Buffalo Sabres, which can be a good thing for some defensemen.
Chad Ruhwedel made his NHL debut in the Sabres' 1-0 win over the Flyers Saturday.
The Buffalo Sabres announced the signing of college free agent Chad Ruhwedel on Saturday and he'll make his NHL debut against Philadelphia this afternoon.