Arizona Cardinals place S Tyrann Mathieu on IR

The Arizona Cardinals placed safety Tyrann Mathieu on injured reserve Friday with a shoulder injury, marking the third time in four NFL seasons that he will finish on the IR list.

Mathieu never could fully get past his 2015 ACL tear and then suffered a shoulder injury this season.

Since hurting his shoulder against the Carolina Panthers in Week 8 on Oct. 30, Mathieu played in only two of the next six games and struggled in both.

The 24-year-old Mathieu played in 10 games this season, finishing with 33 tackles, one sack, one interception and four passes defensed.

To take his place on the roster, the Cardinals promoted safety Trevon Hartfield from the practice squad.

Hartfield spent the entire season on the practice squad after originally signing with the Cardinals as an undrafted rookie free agent from Southwest Oklahoma State. He played one season at the Division II school, making five interceptions.