Dan Campbell says RB David Montgomery (knee) will have season-ending surgery.

Related players: Jahmyr Gibbs, Craig Reynolds

Big blow to the Lions here. As we stated earlier today when we speculated Monty may be out for a while at the least, Gibbs will take over as the team's RB1. Last year, Reynolds got between 7-14 carries in three of the four games he played when either Gibbs or Montgomery were out. Reynolds should have some flex value, at least, and would be worth a pickup if he's on your wire and you're looking for any help at RB.

Lions RB David Montgomery is now out indefinitely after suffering an MCL injury during Sunday’s loss to the Bills, sources tell ESPN.

Related players: Jahmyr Gibbs, Craig Reynolds, Sione Vaki

Montgomery is undergoing additional testing on his knee and getting a second opinion to confirm, but he could be lost for the season, according to the rest of Schefter's post. It's another huge loss for the Lions in terms of their quest for a Super Bowl, but from a fantasy angle it looks like Gibbs will take over the as the clear RB1 going forward. Montgomery has scored 12 TDs this season and his fantasy owners now suffer a huge loss in their lineup for the rest of the fantasy playoffs. Reynolds will likely soak up some of Monty's between-the-tackles work at least, but it remains to be seen how the split in work will be determined. Last season in four games where either Montgomery or Gibbs were out, Reynolds had 7, 10 and 14 carries in three of those games. The exception was a blowout loss to the Ravens were he only received three carries. He had four receptions total in that four game span, so Reynolds could get a decent amount of touches each game for those who may be hurting at the position.

Good news for the #Lions: RB David Montgomery (shoulder) and WR Amon-Ra St. Brown (knee) are both active after being questionable.

Related Players: Jahmyr Gibbs, Jameson Williams, Tim Patrick

Good news, indeed. Montgomery should be fired up as an RB2, with ARSB as a WR1.

During Sunday’s win over the Vikings, Lions running back David Montgomery had to exit the contest in the first half due to a knee injury.

But Montgomery was able to come back in during the second half and contribute to the victory.

Related players: Jahmyr Gibbs

In his Monday news conference, head coach Dan Campbell said that there’s no long-term concern with Montgomery’s knee and he should be fine going forward, the story said. He was quoted as saying, “He’s good. Obviously, he had pain. And he knows it’s in that area around the knee. And it’s kind of in the back. So you’re trying to figure it out and it’s painful. And once we got him off, tested it, looked at it, he started feeling better." Monty was able to come back and had nine carries and three catches, but it was Gibbs who carried 15 times and added four receptions.

The Lions and running back David Montgomery agreed to a contract extension that will keep the pair together through 2027.

Montgomery and Jahmyr Gibbs have formed one of the best running back duos in the league and this will keep that intact for a few more years. Monty is now tied to Detroit for at least three more seasons after this one. Monty has 271 yards on 63 carries with four touchdowns. He's been a key piece of the Lions offense since joining as a free agent before the 2023 season.

Good news on Lions Pro Bowl RB Jahmyr Gibbs. Sources say the hamstring injury he suffered is not considered significant, but the team will be very cautious with rest and rehab to make sure he’s 100% healthy. My understanding is he should be ready for Week 1 vs the Rams.

Related Players: David Montgomery, Craig Reynolds

It looks like the projected Gibbs/Montgomery split is still intact, making them both very fantasy-viable. If Gibbs were to miss anytime, Montgomery should be considered an RB1.

Source: Lions RB Jahmyr Gibbs suffered a hamstring injury at today’s practice.

Related players: David Montgomery, Craig Reynolds, Sione Vaki, Zonovan Knight

This will be worth monitoring until we find out just how serious this is. Hamstring injuries, of course, can be very tricky. If Gibbs has to miss any time or games to start the season, Montgomery would likely get a bulk of the work with Reynolds next up. The loss of the dynamic Gibbs would certainly change the Lions offensive attack. The rookie Vaki could get to see more time if Gibbs is out for a while.

Lions RB David Montgomery (ribs) does not have an injury designation for Sunday, and he will play.

Related Players: Jahmyr Gibbs

Gibbs has been fantastic with his given opportunities, but Dan Cambell has made it abundantly clear that the team would prefer to move the ball through Montgomery in the early downs and near the goal line. Both will be RB2 options when sharing the field.

Lions RB David Montgomery (ribs) was a full participant for Wednesday's practice estimation.

Related Players: Jahmyr Gibbs

Gibbs has been fantastic with his given opportunities, but Dan Cambell has made it abundantly clear that the team would prefer to move the ball through Montgomery in the early downs and near the goal line. Both will be RB2 options when sharing the field.

For much of this season, the Lions haven’t needed to decide how to split snaps between running backs David Montgomery and Jahmyr Gibbs because the two haven’t been healthy at the same time. But that’s about to change, and Lions head coach Dan Campbell says both players will get plenty of opportunities.

Montgomery appears likely to return from his rib injury Sunday against the Chargers, and Gibbs is coming off his best game last week against the Raiders, the story said. When healthy, Montgomery has been the starter, and it appears that will remain the case for the rest of the season, the story added. The story also speculated Gibbs’ breakout game against the Raiders likely means he’ll get close to an equal workload going forward.