Retired Ravens center Matt Birk is joining the NFL as an appeals officer on player discipline replacing former NFL coach Art Shell.

Birk confirmed the appointment in a text message to The Baltimore Sun.

A six-time Pro Bowl selection Birk retired after the Ravens' Super Bowl XLVII victory over the San Francisco 49ers. The Harvard graduate played in the NFL for 15 seasons.

Along with former NFL defensive coordinator Ted Cottrell Birk is one of two appeals officers approved in conjunction by the NFL and the NFL Players Association. In this role Birk will review discipline matters that have been appealed.