Updated

Packers tackle Chad Clifton's 12-year run in Green Bay is over.

According to multiple reports, Clifton was released on Monday due to a failed physical. But the Packers did not specify the reason for releasing the veteran tackle.

The 35-year-old Clifton sat out 10 games last season because of injuries. The veteran had back surgery during the offseason.

Clifton started 160 of the 165 games he played in during his time in Green Bay, which included two Pro Bowl appearances. He ranks No. 2 in franchise history for the most games played by an offensive tackle behind only Forrest Gregg (187 games).

"Chad is a great Packer and has been an integral part of our success over the past 12 seasons," Packers general manager Ted Thompson said. "He was a member of some of the most prolific offenses in team history, but more importantly, he is a great person and teammate. We thank Chad for all that he has given the Packers on the field and in the community and wish him and his family well."

Clifton helped pave the way for a 1,000-yard rusher in eight of his 12 seasons in Green Bay and was a part of top-10 offenses in nine of those seasons. He was part of the 2010 squad that won Super Bowl XLV.