Trey Benson

Trey Benson was drafted by the Arizona Cardinals in the 3rd round (66th overall) in 2024. Wikipédia
He had some production in 2024, but also dealt with injuries. Wikipédia
In 2025, Benson has been dealing with a knee injury. SI+3bolavip.com+3Revenge of the Birds+3
The Cardinals have decided to place him on injured reserve (IR), meaning he will miss at least 4 games. Revenge of the Birds+3NBC Sports+3bolavip.com+3
It’s expected he could recover and return later in the season after that IR window. NBC Sports+1

So “Trey Benson IR” is now official (or at least in process), which bumps him out of the active depth chart for now.

Michael Carter

Michael Carter is a running back on the Cardinals’ roster. azcardinals.com+2Wikipédia+2
His journey with the Cardinals: he was claimed in 2023, has bounced on/off the roster, and more recently has been on practice squad moves. Wikipédia+1
In late September 2025, the Cardinals signed Michael Carter to the active roster from the practice squad. Revenge of the Birds+1
His addition is timely given the RB injuries the team is facing. Revenge of the Birds

Carter becomes a more important depth piece now that Benson (and Conner) are injured.

Here’s how the RB room is shaping given injuries and roster moves:

Before injuries / projections:

Going into the season, many projections had James Conner as the starter. Revenge of the Birds+3Revenge of the Birds+3ourlads.com+3
Behind him: Trey Benson, Emari Demercado, with Michael Carter and Bam Knight further down. ESPN.com+5Revenge of the Birds+5ourlads.com+5

Recent updates / current state:

The team placed James Conner on IR with a foot/ankle injury, likely ending his season. Revenge of the Birds+4Reuters+4Reuters+4
With Conner out, Benson was elevated as the lead back, but now Benson is on IR. Revenge of the Birds+5NBC Sports+5Revenge of the Birds+5
With the top two backs hurt, Emari Demercado is now expected to be the starting back (or at least top option) in the near term. Revenge of the Birds+3bolavip.com+3Revenge of the Birds+3
Behind him in the depth: Michael Carter (recently activated), Bam Knight. CBSSports.com+4bolavip.com+4Revenge of the Birds+4
The official Cardinals depth chart shows RBs listed (but given the injuries, updates are ongoing). azcardinals.com+1
Another depth chart source, Ourlads.com, lists Conner (U/Pit), Benson, Demercado, DeeJay Dallas, Carter, Knight. ourlads.com

So as of now, the RB depth could look like:

But this is fluid, especially with possible further roster changes.

Trey Benson is on IR and out for at least 4 weeks. Revenge of the Birds+3NBC Sports+3bolavip.com+3
Michael Carter has been promoted to the active roster and is now a more significant depth piece. Revenge of the Birds+2Wikipédia+2
The Cardinals’ RB room has been decimated by injuries: with Conner out for the season and Benson now injured, Emari Demercado steps into the lead role, and Carter & Knight serve as primary backups.
The depth chart is being updated in real time to reflect these changes.