Dolphins RB Myles Gaskin tested positive for COVID, NFL Network's Tom Pelissero reports. Gaskin is vaccinated, so there's a chance he's cleared in time for Miami's Week 15 game vs. the Jets. If not, the Dolphins would be down to RBs Phillip Lindsay and Salvon Ahmed on the active roster. RBs Duke Johnson and Gerrid Doaks are on the practice squad, while RB Malcolm Brown (quad) is eligible to come off IR

The Dolphins have claimed RB Phillip Lindsay off waivers. He joins a backfield that has been dominated by Myles Gaskin lately. Claiming Lindsay probably means Miami would rather not give Gaskin quite so many touches. The former Texan and Bronco has faired poorly as a passing-down back throughout his career, though. So Gaskin should continue to control at least that area of Miami's backfield. We'd bet on Gaskin remaining a decent option in low RB2 territory, but his touch floor could be coming down. We'll see just what the Dolphins have in mind for Lindsay. Miami has also recently mixed Duke Johnson in and could get Malcolm Brown back from a quad injury that landed him on IR.

Dolphins RB Salvon Ahmed is a healthy scratch for today's game vs. the Jets. RB Duke Johnson, who was promoted from the practice squad on Saturday, is active and will serve as the #2 behind Myles Gaskin. Gaskin should handle the vast majority of the backfield work.

Dolphins RB Duke Johnson has been promoted to the active roster. He'll presumably be active for tomorrow's game vs. the Jets, alongside RBs Myles Gaskin and Salvon Ahmed. We wouldn't expect Johnson to steal more than a few touches from Gaskin.

The Dolphins have signed RB Duke Johnson to their practice squad. The 28-year-old spent a couple of weeks on Jacksonville's practice squad in September but has otherwise been unemployed since being released by the Texans in February. There's opportunity in after RB Malcolm Brown was placed on IR, but Johnson is only worth adding in the deepest of fantasy leagues right now. We'll see if he gets promoted to the active roster.

Dolphins RB Malcolm Brown will be placed on IR with a quad injury suffered in Sunday's loss to the Falcons, HC Brian Flores said Monday. Brown will be out at least the next 3 weeks vs. the Bills, Texans and Ravens. He's played 28% of Miami's offensive snaps and averaged 4.7 carries and .7 targets per game, so his absence leaves behind a little extra work for RBs Myles Gaskin and Salvon Ahmed.

The Dolphins released rookie RB Gerrid Doaks. For now, Miami will roll with Myles Gaskin, Malcom Brown and Salvon Ahmed in the backfield. Only Gaskin is ranked as a top-50 option in our 2021 RB rankings.

Dolphins RB Malcolm Brown started Saturday's preseason opener vs. the Bears. Per Pro Football Focus' Nathan Jahnke, Brown out-snapped RB Myles Gaskin 16 to 7 with the 1st-team offense. Gaskin then played into the 2nd quarter with Miami's backups. "You saw all 3 backs played, all 3 of them got carries," HC Brian Flores said after the game, referring to Brown, Gaskin and Salvon Ahmed. "Pick one out and put them in, basically. We like all 3 guys. They all do good things. And I think we saw that today. And [we'll] just keep working all 3 guys." That sure sounds like this will be an ugly committee backfield. We'll get another look at the rotation in Miami's 2nd preseason game. But, for now, we've moved Gaskin well down the RB rankings and Brown up.

The Dolphins are signing RB Malcolm Brown, according to NFL Network's Ian Rapoport. Brown set career highs last year in carries (101), rushing yards (419) and all receiving categories (33 targets, 23 catches, 162 yards). His departure leaves Cam Akers and Darrell Henderson more room in the Rams backfield for now. Miami has been commonly linked to the top incoming rookie RBs in mock drafts. We'll be curious to see how else they address a backfield that was dominated by Myles Gaskin in 2020.

Dolphins RB Myles Gaskin has been activated from the COVID list and practiced on Wednesday. That puts him on track to return for Saturday night's game against the Raiders. A healthy Gaskin has been Miami's lead back, averaging 17.5 carries and 4.3 targets over his last 6 games. We're expecting him to return to a similar role, despite RB Salvon Ahmed's solid Week 15 outing.

Dolphins RB Salvon Ahmed (shoulder) is active for today’s game against the Patriots. He joins DeAndre Washington, Matt Breida and Patrick Laird in the backfield. Ahmed operated as Miami's lead back in Weeks 10 and 11 and might return to that role today. But it’s unclear exactly how touches will be distributed here.

Dolphins RB Salvon Ahmed (shoulder) is listed as questionable for this weekend's game vs. the Patriots. He got in 3 limited practices this week and seems on track to return. Ahmed operated as Miami's lead back in Weeks 10 and 11, totaling 33 carries and 7 targets. He might just be the best bet for touches in the backfield this weekend -- ahead of DeAndre Washington, Matt Breida and Patrick Laird -- but you're best off just avoiding this backfield in what figures to be a low-scoring affair vs. New England.

Dolphins RBs Salvon Ahmed (shoulder) and Matt Breida (COVID) are out for Sunday’s game against the Chiefs. That leaves DeAndre Washington and Patrick Laird to back up Myles Gaskin, who was back in a feature role last week.