Arizona Cardinals running back Trey Benson underwent arthroscopic surgery on his meniscus and is expected to be sidelined four to six weeks, a source told ESPN’s Adam Schefter on Wednesday.
Cardinals coach Jonathan Gannon told reporters Wednesday that Benson was being placed on injured reserve due to a knee injury and is expected to return this season.
Benson must miss at least four games while on injured reserve. The Cardinals have three games until their bye week, putting his return at Week 10 at the earliest.
Gannon said he wasn’t sure when exactly Benson was injured during Thursday’s loss to the Seattle Seahawks but that he believed the running back played through the injury for some portion of the contest. Benson told the Cardinals on Friday that he was sore.
Benson had assumed the starting role in Week 4 after James Conner suffered a season-ending foot injury the prior week against the San Francisco 49ers. Benson rushed for 35 yards on eight carries and had five catches for 19 yards against the Seahawks.
With Benson sidelined, Gannon said he expects running backs Emari Demercado, Michael Carter and Bam Knight all to play Sunday against the Tennessee Titans. Those three have combined for five carries for the Cardinals this season.
