It turns out that both sides worked into the night and finalized an agreement. A source tells ESPN.com's AFC East blog that Urbik and the Bills agreed to a four-year, $15 million extension.
Urbik is a two-year starter for Buffalo who has the versatility to play both guard spots and center. He is one of the anchors of an offensive line behind which Bills tailback C.J. Spiller recorded his first 1,000-yard season.