Keim wants to re-sign the third-year player to a long-term deal.
Mathieu’s rookie contract ends after the 2016 season but Arizona was allowed to begin negotiating after the 2015 season ended.
“We’ve had conversations,” Keim said here at the NFL scouting combine. “I don’t generally negotiate through the media. We’ve made our goal clear, which is to re-sign him to a long-term deal.
“Yet, at the same time there are always obstacles in negotiations. So, we’ll see where it goes.”
Mathieu has been rehabbing a torn right ACL since suffering the injury in Week 15 at Philadelphia. His recovery and rehab is being overseen by Cardinals physical therapist Brett Fischer, who owns Fischer Institute, a gym and performance center in Phoenix.
It was Mathieu’s second major knee injury in three years, but Keim has heard the Honey Badger’s rehab has gone smoothly.
“Every indication is that Tyrann is doing a fantastic job in his rehab,” Keim said.