GREEN BAY, WI (WSAU) Green Bay Packers’ guard T-J Lang has agreed to a four-year contract extension. He’s beginning his second year as a full-time starter, and his agent Mike McCartney would not disclose the financial details.

Lang said on Twitter quote, “I’m beyond excited to be staying home for another four years – Pack Nation, I won’t let you down.”

Four of Green Bay’s five starting offensive linemen are under contract at least through 2013. The only one who’s not is veteran center Jeff Saturday. Right guard Josh Sitton recently signed a five-year extension. Tackles Bryan Bulaga and Derek Sherrod are under contract through 2014, and tackle Marshall Newhouse is signed through next season.