The big news for the Arizona Cardinals and the NFL on Tuesday was the announcement that veteran defensive lineman Calais Campbell agreed to a one-year contract to return to Arizona and play for the team that drafted him. Campbell revealed why he chose to come back to the Cardinals eight years after he left in free agency.

Calais Campbell is back for at least one more season -- his 18th in the league. The 38-year-old defensive lineman is signing a one-year deal with the Arizona Cardinals, the team announced on its website. It's a one-year deal worth $5.5 million, according to ESPN, and can pay as much as $7.5 million with incentives.

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.