Center Jason Kelce – front and center – posed for this picture during OTAs, in May, was expected to have a Pro Bowl caliber season. The second-year player is out for the season after suffering a knee injury against Baltimore in week 2. Photo by Todd Bauders/contrastphtography.com

The Philadelphia Eagles today announced they have signed C Steve Vallos and placed C Jason Kelce on the season-ending Injured Reserve list.

Head athletic trainer Rick Burkholder will be available on a conference call for reporters. To access the call, dial 866-269-3552.

Vallos (6-3, 310) spent training camp this season with the Eagles after signing with the team on 3/19/2012. He was released as part of the team’s final roster cut down. Vallos has played in 40 career games (8 starts) with Seattle (2008-09) and Cleveland (2010-11). He was originally a seventh-round draft choice of the Seahawks in 2007 and spent that season on the team’s practice squad. Vallos played collegiately at Wake Forest, where he set a Demon Deacons record for most career starts with 48.