Three-time All-Pro safety Tyrann Mathieu announced in a post on his Instagram page that he is retiring from the NFL. The 33-year-old defensive back was entering his fourth season with the New Orleans Saints but won't step onto the field this year.

Tyrann Mathieu announced his retirement from the NFL. Mathieu played 12 NFL season, including five with the Cardinals. PHOENIX - Former Arizona Cardinals safety Tyrann Mathieu took to social media on Tuesday to announce his retirement from the NFL.

A former Arizona Cardinals player who was key during their run of success in the middle of the 2010s has called it a career. Safety Tyrann Mathieu, originally drafted by the Arizona Cardinals, announced his retirement from the NFL after 12 seasons. He made the announcement on his Instragram account.