The Dolphins have only one above average defensive lineman under contract, in Zach Sieler. They have a nose tackle, Benito Jones, who has consistently graded out among the worst in the league. Their only two other defensive linemen under contract are journeymen Matt Dickerson and Neil Farrell.

Veteran defensive lineman Calais Campbell has agreed to a one-year contract with the Arizona Cardinals, returning to the franchise that drafted him for his 18th NFL season.

38 and still going: Standout DL and #Dolphins FA Calais Campbell is expected to sign with the #AZCardinals on a 1-year deal, sources say, as the former Walter Payton Man of the Year is set for another season. 38 years old, with 17 seasons under his belt, Campbell isn’t done. pic.twitter.com/6aC1l8NXBs

After playing a one-year, $2 million deal in 2024 for the Dolphins, Calais Campbell will make up to $7.5 million with the Cardinals.

The Arizona Cardinals are expected to sign veteran defensive lineman Calais Campbell to a one-year deal to officially mark the return of the 38-year-old for his 18th NFL season in 2025, according to a report from NFL Network's Ian Rapoport.

Calais Campbell was one of the Dolphins’ best and most inspirational players last season. Campbell, who is entering his 18th season, finished with 52 tackles last season, and 5.0 sacks.

The Miami Dolphins are losing Calais Campbell to the Arizona Cardinals. This creates a major void both on the field and in the area of team leadership.