The star AFC East offensive linemen want new contracts.
Mankins, the two-time Pro Bowl left guard, didn't show up for Tuesday's start to New England Patriots minicamp after telling ESPNBoston.com's Mike Reiss he wants to be traded. Mankins is not under contract, refusing to sign the qualifying offer the Patriots extended.
Mangold, the reigning All-Pro center, spoke for the first time at New York Jets minicamp about his desire for a contract extension. Mangold is entering the final season of a five-year deal he signed as a rookie.
"It's deeply disappointing that we are where we are," Mangold said after Tuesday morning's session. "I've tried to do the right things on and off the field. I feel it's the Jets' turn. Not having that security of an extension is bothersome."
Mangold was evasive when asked whether he would consider holding out from training camp if there aren't any positive developments between now and then. The outlook for progress seems bleak. With the limitations of the uncapped year and labor uncertainties for 2011, the Jets haven't so much as made a proposal.
"If they let me go into the season without the security of a long-term deal," Mangold said, "at some point I'm going to have to decide my wants and desires to be on the team."
The Patriots, meanwhile, had to adjust without Mankins, the only player on the roster who didn't report to Gillette Stadium.
Reiss shined a spotlight on how the Patriots will address Mankins' absence. Nick Kaczur, last year's starting right tackle, lined up at left guard with the first-team offense. Sophomore Sebastien Vollmer was in Kaczur's usual spot.