Benson (knee) was waived/injured by the Cardinals on Monday, Darren Urban of the team's official site reports.
Benson has been in and out of practice throughout training camp due to lingering issues with his surgically repaired left knee that kept him sidelined after Week 4 last season. Arizona made two notable additions to its backfield this offseason in 2026 third overall pick Jeremiyah Love (ankle) and free-agent addition Tyler Allgeier and still retains long-time starter James Conner (foot). Assuming Benson clears waivers Tuesday, he'll revert to injured reserve.