The Facts: Mack suffered a significant left Achilles injury in practice on Tuesday, a non-contact injury when he was flaring out for a pass without defenders. Mack knew it was a problem when it happened, and needed help to limp to the locker room unable to put weight on it.

Diehards Line: It is the second time in Mack's career he has torn his Achilles, after the same thing happened early in the 2020 season. Mack tore his right Achilles when he was with the Colts. The Cardinals figure to add a running back sooner rather than later, which is why they signed Mack in the first place. James Conner is the starter and Corey Clement has gotten most of the No. 2 snaps in camp with Keaontay Ingram having done little with an undisclosed injury. The running back room also includes Ty'Son Williams and Emari Demercado.