Tyrann Mathieu isn't completely closing the door on a return to the NFL, but for now, the former Super Bowl champion and three-time first-team All-Pro remains confident in his decision after announcing his retirement Tuesday.

Tyrann Mathieu's retirement has sparked speculation about a possible comeback and potential Chiefs betrayal. Uncover all the details.

New Orleans Saints safety Tyrann Mathieu joins 'The Insiders' after announcing his retirement from the league.