The Dolphins have placed RB Kalen Ballage (leg) on IR and signed RB Zach Zenner. It ends a laughably bad season for Ballage, who finishes with 1.8 yards per carry and 4.5 yards per catch. Zenner is a plus athlete but has averaged just 3.9 yards per carry over 5 NFL seasons. He joins Patrick Laird and Myles Gaskin in Miami's backfield. Avoid the situation in Week 14's matchup vs. the Jets' 10th-ranked RB defense.

Cardinals RB Chase Edmonds suffered a hamstring injury in the 3rd quarter of Sunday's game in New Orleans and is officially questionable to return. Zach Zenner is the only other active RB for Arizona today.

The Lions have reached a 1-year deal with RB C.J. Anderson, according to ESPN's Adam Schefter. That supports HC Matt Patricia's recently stated plan of continuing to deploy a backfield committee. Anderson joins a group that will also return Kerryon Johnson, Theo Riddick and Zach Zenner (who got a new 1-year deal). Anderson came on with the Rams at the end of last season after doing next-to-nothing with the Panthers. L.A. opted for youngster Malcolm Brown, however, behind Todd Gurley. Anderson threatens to take goal-line carries from Johnson, though the 2018 rookie remains the highest-upside RB in Detroit. This will be 1 of the more interesting backfield's to project over the next 2 months.

Lions HC Matt Patricia suggested that his team will continue to deploy a committee backfield in 2019, not wanting to overwork RB Kerryon Johnson. "I think it’s a position-specific thing where those guys, they take a lot of hits,” Patricia said. “They’re in those situations a lot where their bodies are taking some pounding so you want to be conscious of how many plays they’re getting, especially early on in the year." Patricia comes from New England, where the Patriots have long utilized multiple RBs. The Lions return RBs Theo Riddick and Zach Zenner behind Johnson and might still add to the position in free agency or the draft. There are, of course, very few every-down backs in the NFL. So Johnson still has a shot to flirt with RB1 value in his sophomore campaign under run-loving OC Darrell Bevell.

The Lions re-signed RB Zach Zenner. The 27-year-old averaged a career-best 4.8 yards per carry last year after mustering just 3.5 across his first 3 seasons. But Zenner has yet to top 88 carries in a season and won't get there in 2019 without a prolonged absence from RB Kerryon Johnson.

Lions RB LeGarrette Blount (calf) is active for today’s game against the Vikings. He played behind Zach Zenner last week and shouldn’t be in Week 16 fantasy lineups.

Lions RB LeGarrette Blount (calf) is questionable for this weekend’s game against the Vikings. He was added to the injury report on Thursday and limited again on Friday. Blount had already seemingly fallen behind Zach Zenner on the depth chart. His absence would be a slight boost to Zenner’s Week 16 outlook.

Lions RB Kerryon Johnson has been placed on IR with the knee injury he suffered back in Week 11. It ends promising rookie season that saw him average 5.4 yards per carry and haul in 32 balls. We still don't have any details on Johnson's injury, but he should be fine for the offseason program. Zach Zenner, LeGarrette Blount and Theo Riddick will close out the year in Detroit's backfield. Zenner led the way with a 46% snap rate, 10 carries and 4 targets in last week's loss in Buffalo.

Lions RB Kerryon Johnson (knee) is out for Sunday’s game against the Bills. The rookie has yet to practice since going down and has no timetable for return. Detroit’s backfield devolved into a 3-man committee last week with LeGarrette Blount, Theo Riddick and Zach Zenner. It’s a situation best avoided in Week 15 fantasy lineups.

The Lions on Saturday cut RB Dwayne Washington and placed RB Zach Zenner on IR for a back injury, according to MLive.com. That could mean RB Ameer Abdullah has secured a spot on the 53-man roster. We'll see once Detroit finalizes things later today.

Lions RB Dwayne Washington (quad) is out for Sunday’s game against the Falcons. RB Zach Zenner figures to step into Washington’s minor role, so we’re not bumping up RB Ameer Abdullah’s Week 3 projection.

Lions RB Zach Zenner is inactive for today's opener against the Cardinals. He wasn't listed on the final injury report, so this looks like a healthy scratch. Zenner is behind Ameer Abdullah, Theo Riddick and Dwayne Washington the depth chart and isn't worth rostering in redraft. We're curious to see who gets the goal-line carries for Detroit.

The Lions have signed RB Matt Asiata. A fantasy undertaker in Minnesota, Asiata vultured 19 total TDs over the past 4 seasons -- despite averaging just 3.5 yards per carry. He joins Ameer Abdullah, Theo Riddick, Zach Zenner and Dwayne Washington in Detroit's backfield. Those final 2 and Asiata might be battling for 1 or 2 roster spots. We hope Asiata doesn't turn into a fantasy factor again.

Lions RB Theo Riddick (wrist) is out for Sunday night’s game vs. Green Bay. That leaves Zach Zenner as the likely lead back after he out-touched Dwayne Washington 14 to 8 last week.

Lions RB Theo Riddick (wrist) remained sidelined on Thursday. Detroit would love to get him back for Sunday night's massive game against the Packers, but it doesn't look like that's in the cards. Riddick's absence would likely mean another game as lead back for Zach Zenner.

Lions RB Theo Riddick (wrist) is inactive for today’s game against the Giants. RB Zach Zenner (concussion) is active and will serve as the #2 RB behind Dwayne Washington. Washington is a solid bet for 15+ touches but is just a RB3 or flex against a tough Giants defense.

Lions RB Theo Riddick (wrist) didn’t practice all week and is listed as doubtful for Sunday’s game against the Giants. His absence will again leave Dwayne Washington as Detroit’s lead back. He tallied 17 touches last week and could be looking at similar volume on Sunday. A tough Giants defense leaves Washington as just a RB3, though. RB Zach Zenner (concussion) is questionable after a limited week of practice.

Lions RB Zach Zenner was evaluated for a concussion during Sunday's game against the Bears. The team hasn't announced the result of those tests, but Zenner wasn't allowed to speak with the media afterward. That suggests he did indeed sustain a concussion, putting his Week 15 status in question. RB Theo Riddick missed the Bears game with a wrist injury, and his availability going forward remains unclear. RB Dwayne Washington could be in for another busy outing this coming weekend against the Giants.