NFL: Matt Birk and other NFL players accept pain as part of the game - ESPN
A Healthy Matt Birk Returns
Catching Up With Former Viking Matt Birk - Mpls.St.Paul Magazine
Former NFL star's Greenwich home on the market
Matt Birk Avoiding Game Film from Super Bowl XLVII
Matt Birk undergoes insane body transformation losing an incredible 75 pounds since his retirement from the NFL
Super Bowl champion Matt Birk looks unrecognizable after losing 75 pounds, 10-inches from waistline
NFL: How 19 Players Lost Weight After Retiring, Became Unrecognizable
NFL training camps: a team-by-team outlook – The Denver Post
Winter Park To Host Regional Combine On Saturday
A Round-by-Round Look at the Vikings' History of Drafting Offensive Linemen - Zone Coverage
NFL: Former Viking's mission to help people out - Brainerd Dispatch
Former Vikings Standout Matt Birk Will Be Jensen's Running Mate