Minnesota Vikings head coach Kevin O'Connell said running back Alexander Mattison suffered a concussion in Sunday's game versus the Saints.

Related players: Myles Gaskin, Ty Chandler, Kene Nwangwu

The trend has been players sit out at least week after falling into concussion protocol, so Mattison owners may want to make alternate plans now. To complicate things, Mattison and the Vikings have the Sunday night game at Denver in Week 11. Chandler could see a bulk of the work and scored on a wildcat formation play in Week 10. The team has already signed Gaskin ahead of Week 11. Chandler could make for an interesting pickup this week if he's on your wire. It's a favorable matching against the Broncos.

Rams’ RB Darrell Henderson Jr. will be promoted off the practice squad for Sunday’s game vs. the Steelers. “Darrell came back in; he's a guy that's going to be up and active this week,” said Rams’ HC Sean McVay. “He's done a great job of being able to quickly re-acclimate himself back to a lot of the things that we've done; he's taking good care of himself in the meantime.”

Related Players: Zach Evans, Royce Freeman, Myles Gaskin

This sounds like pretty awful news for those of us who rushed to the waiver wire to snatch up Zach Evans this week. McVay has been very giving to his RB1 in recent memory, but we have quite a logjam at the position now, particularly after this Henderson promotion. It's going to be difficult to start any of these options in Week 7.

Rams RB Kyren Williams is expected to miss multiple games but should be back, at the latest, after the Week 10 bye, per source. Williams suffered an ankle sprain on Sunday.

Related Players: Zach Evans, Royce Freeman, Myles Gaskin

As Freeman and Gaskin are either freshly off the practice squad, or newly signed, the backfield should be all Zach Evans' for the short-term, making him one of the best adds if your waivers haven't run yet.

The Rams are adding another running back to help offset the injuries to Kyren Williams and Ronnie Rivers.

Los Angeles is signing Myles Gaskin off of the Vikings’ practice squad, according to ESPN’s Adam Schefter.

Related players: Royce Freeman, Zach Evans, Darrell Henderson

It's been reported Evans will get the start in Week 7, assuming Williams is out with the ankle injury. Freeman was signed from the practice squad and will likely get work as well. The Rams have been busy building up their RBs, they also signed old friend Henderson today to the practice squad. Williams is expected to miss this week but Rivers could end up on IR and miss 4-5 weeks according to reports.

Dolphins are releasing running back Myles Gaskin.

Related players: Jeff Wilson, Raheem Mostert, Devon Achane, Salvon Ahmed

Gaskin is the odd man out in a pretty crowded Miami RB room. The drafting of Achane likely cost Gaskin a roster spot. It looks to be a three-headed monster with Wilson and Mostert as well. But Achane's stock is climbing and he could end up leading the way in touches as we get deeper into the 2023 season. The Dolphins are also rumored to be hot on the trail of current Colts RB Jonathan Taylor.

Dolphins RB Devon Achane is also dealing with a shoulder injury. He's week to week and avoided serious injury.

QB Mike White is also in concussion protocol.

Related players: Jeff Wilson, Raheem Mostert, Myles Gaskin

Achane has been a highly-touted rookie RB who has gained a lot of traction, especially early on in dynasty leagues. Achane's biggest asset is his speed, and talk was building he'd have a significant role in the Dolphins offense because of HC Mike McDaniel's love of fast players. He still was going to lose touches to Wilson and Mostert, so it remained to be seen how much of the workload he could garner. This setback could end up costing him some work, at least to start the season. But the good news is he avoided a more serious injury.

Devon Achane, a third-round rookie, has "already looked like one of the Dolphins' more explosive offensive players."

Related Players: Jeff Wilson, Raheem Mostert, Salvon Ahmed, Myles Gaskin

Beat writer Louis-Jacques would continue, "Even in non-padded team drills, Achane showed prowess as a pass-catcher and home run ability after the catch. It's a crowded running back room in Miami, but it may not be long before the rookie has a prominent role. "

We already have Achane ranked clear tiers above Raheem Mostert and Jeff Wilson, as the RB27. Those of us who have been grabbing Achane throughout best ball drafts continue to hold our breath that the team won't sign a veteran in the vein of Dalvin Cook or Ezekiel Elliot.