Clay Harbor

The Lions are signing tight end Clay Harbor.

(AP Photo)

ALLEN PARK -- The Detroit Lions have signed former Patriots tight end Clay Harbor, and released tight end Orson Charles in the corresponding roster move.

Harbor's addition comes two days after Eric Ebron suffered knee and ankle injuries in a 17-14 loss in Chicago. Ebron was able to finish the game, but was in visible discomfort during and after it.

"Battling life, man," Ebron said after the game. "It's football. It's what you do. You play hurt. You play banged up. It's what we do."

Coach Jim Caldwell declined to offer an update on Ebron's status, and it's unclear whether he'll be limited heading into Sunday's game against the Eagles.

Detroit also has Cole Wick and Khari Lee on the roster at the position.

Harbor was a fourth-round pick of the Eagles in 2010. He played there three seasons, then the following three with Jacksonville. He signed with New England last offseason and appeared in three games, but did not record a catch.

He has 111 career catches for 1,151 yards and eight touchdowns.