“We have a lot of confidence in Jahmyr Gibbs,” Campbell said, via the team’s website. “He’s continued to get better and better as the season has gone. Given the opportunity, he’s made a lot of plays. He made some big plays for us. He brings an explosive element. He’s getting better in the pass game, and you see what he’s able to do in the run game. We have a ton of confidence.”

Craig Reynolds and fourth-round pick Sione Vaki are also on the Lions roster, but it’s going be Gibbs’s show the rest of the way and the Lions will need him to keep performing at the same level.

Related players: Craig Reynolds, Sione Vaki

Gibbs owners look like they could greatly benefit by the injury to Montgomery as we head down the stretch of the fantasy playoffs. We detailed a little bit on Monday that last season, when either Montgomery or Gibbs were out of the lineup, Reynolds got between 7-14 carries in three of those four games (the fourth was a blowout loss to the Ravens). It still remains to be seen just how the team will divide up the carries, but it's reasonable to think Gibbs should at least see a slight uptick in work with Montgomery out.

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 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’ HC Dan Campbell told reporters that rookie RB Jahmyr Gibbs will play vs. the Ravens and added this: “Certainly I think he’s going to need to take the load of (the work)….I’d like to say we’re going to be careful with him, but the reality is we need him.”

Related Players: Craig Reynolds, Devine Ozigbo

Dan Campbell has been pretty straight forward with his coach speak this year, which means we can't leave Gibbs out of lineups this weekend. Craig Reynolds can be considered an RB3 or FLEX play, as he may still garner the David Montgomery goal-line work.

Another hit for the Lions, though nothing has slowed them yet: Sounds like Lions RB David Montgomery will miss some time with the rib injury he suffered yesterday.

Related players: Jahmyr Gibbs, Craig Reynolds

X-rays were negative for Montgomery, which was good news, but it still sounds like Monty will miss at least a game. Gibbs was out with a hamstring injury but it sounds like he may be close to returning. If not, Reynolds would be next man up. He carried 10 times but for just 15 yards after taking over for Montgomery. Reynolds did add two catches for 28 yards. The Lions play at the Ravens in Week 7 and then Monday night of Week 8 before a Week 9 bye. There obviously wasn't an exact timeframe given for Montgomery, but it's possible the team's bye week factors in any decisions.

Detroit Lions running back David Montgomery (ribs) was ruled out versus the Buccaneers. Montgomery's X-rays were negative, per Fox's Pam Oliver.

Related players: Jahmyr Gibbs, Craig Reynolds

Montgomery left owners disappointed after leaving early in Week 6. The Lions were forced to go with Reynolds as the RB1 with Gibbs also out of action. Monty may just be dealing with a pain and comfort issue heading into Week 7 with the injured ribs, so owners will want to monitor his practice status. The Lions are at the Ravens next week in an early Sunday matchup, so we'll have a good idea by then about Montgomery's status. Even after leaving Week 6 with just six carriers, Monty is still averaging over 23 carries per game this season.

Lions ruled out RB Jahmyr Gibbs for Sunday’s game at Tampa, along with DB Brian Branch.

Related Players: David Montgomery, Craig Reynolds

In an impressive Week 5 victory, Montgomery handled business as usual while Reynolds was able to rack up 52 yards and a touchdown on seven carries. Impressive work, but not enough to plug him into a lineup, even though Gibbs will miss Week 6. This is Montgomery's backfield for the foreseeable future, and likely the remainder of the season.

Dan Campbell said Jahmyr Gibbs had "a really good day" of practice Wednesday, got a breather yesterday. Said he can't say with any certainty whether Gibbs will be a go Sunday.

Related Players: David Montgomery, Craig Reynolds

In an impressive Week 5 victory, Montgomery handled business as usual while Reynolds was able to rack up 52 yards and a touchdown on seven carries. Impressive work, but not enough to plug him into a lineup, even if Gibbs were to miss Week 6. This is Montgomery's backfield for the foreseeable future, and likely the remainder of the season.