Broncos add Koppen to their offensive line

Denver Broncos quarterback Peyton Manning might be lining up behind a new center sometime soon. Denver signed free agent center Dan Koppen on Tuesday to push center J.D. Walton and add depth to the offensive line. Enlarge photo

David Zalubowski/Associated Press file photo

Denver Broncos quarterback Peyton Manning might be lining up behind a new center sometime soon. Denver signed free agent center Dan Koppen on Tuesday to push center J.D. Walton and add depth to the offensive line.

ENGLEWOOD – Former Pro Bowl center Dan Koppen, who spent nine seasons snapping the ball to Tom Brady in New England, now will have the chance to work with Peyton Manning.

Koppen signed with the Denver Broncos on Tuesday, two weeks after his release from the New England Patriots, where he played from 2003-11.

Koppen, who will turn 33 on Wednesday, adds experience and depth to the interior line and might push starting center J.D. Walton for playing time.

Manning was sacked twice in his Denver debut, once when it appeared the wrong line call shifted everyone to the right and led to left tackle Ryan Clady having no one to block. Running back Knowshon Moreno was left to block two men, and Pittsburgh linebacker Jason Worilds dropped Manning for an 8-yard loss.

The offensive linemen weren’t in the locker room during the media access period Tuesday.

The Broncos also waived backup center C.J. Davis and re-signed backup quarterback Caleb Hanie, who was released in a procedural move Saturday to provide the Broncos with some financial flexibility. His $1-million base salary no longer is guaranteed.

As expected, the Broncos also placed defensive tackle Ty Warren on injured reserve after he retore his right triceps in the opener, his first game since 2009.

“It affects us a lot, actually,” said second-year defensive tackle Mitch Unrein, who played a career-high 40 snaps after Warren got hurt. “He’s a great leader. but as coach (John) Fox always says, ‘Next guy up,’ so that kind of opens the door for guys like me.”

Warren, 31, reinjured himself early in the Broncos’ 31-19 win over the Steelers. He missed all of last season after tearing the same muscle during training camp, and he missed the 2010 season, his last in New England, with a hip injury.

Warren’s return lasted two plays into the second quarter when he came up injured after shaking off a blocker and trying to tackle running back Jonathan Dwyer.

“That’s a pretty sad reminder of how brutal this game can be and how quickly it can all be over,” Unrein said. “This injury thing is tough, especially for how great he’s played in the NFL for so many years and to go out that way, that’s kind of a bummer.”

Warren was the 13th overall pick by the Patriots in 2003, and he helped New England win two Super Bowls before signing a two-year deal in Denver in 2011. Although he restructured his contract over the summer, Warren will end up collecting more than $5 million for his five snaps with the Broncos.