The Eagles are expected to sign defensive tackle Haloti Ngata to a one-year contract, according to ESPN.

Ngata, 34, is a five-time Pro Bowler who would likely become the Eagles' third defensive tackle. That role was filled by Beau Allen last season. Allen is a free agent.

No contracts can become official until 4 p.m. Wednesday.

Ngata, who is 6-foot-4 and 345 pounds, spent the last two seasons with the Detroit Lions. He was limited to five games last season because of a torn biceps injury. His best years came with Baltimore, where he played from 2006-14 and developed into one of the NFL's best nose tackles. He won a Super Bowl, reached five Pro Bowls, and was twice named first-team All-Pro. Ngata transitioned to a 4-3 defense with the Lions, and that should help him in Philadelphia. Joe Douglas and Andy Weidl, two key executives in the Eagles front office, have a background with Ngata with the Ravens.

The Eagles learned the value of veteran depth last season. They want experience in reserve roles, and Ngata will help a rotation that will be headlined by Fletcher Cox and Tim Jernigan.