Arizona RB Marlon Mack will miss season after Achilles tendon injury

GLENDALE, Ariz. — Arizona Cardinals running back Marlon Mack is out for the season after suffering a left Achilles tendon injury during Tuesday’s practice.

Cardinals coach Jonathan Gannon confirmed the extent of the injury on Wednesday.

The 27-year-old Mack was signed earlier this week in the hopes the veteran could add some depth in the backfield behind starter James Conner. Mack ran for a career-high 1,091 yards and eight touchdowns with the Indianapolis Colts in 2019, but his career has been derailed since that point because of injuries.

Mack tore his right Achilles in Week 1 of the 2020 season, causing him to miss the rest of the season. He played in eight games last season, splitting time with the Broncos and 49ers.