Alvin Kamara, Aaron Jones, Cordarrelle Patterson, and Elijah Mitchell have all been must-starts when healthy, but all mi sed last week with injuries. Their availabilities, whether they're playing or inactive, would have a big effect on Week 12 fantasy rankings and start 'em, sit 'em decisions. Each running back figures to be "questionable" heading into this week's slate of games, so knowing the latest injury updates will be crucial ahead of your lineup decisions.For news on injured WRs CeeDee Lamb and A.J. Brown, ; for more on banged-up players Justin Fields, Michael Carter, and Sam Hilliard Jersey Jordan Howard; for the latest on Calvin Ridley, Kareem Hunt, Logan Thomas, and more players on IR, ; for updates on ailing WRs Allen Robinson, Marquise BrownAntonio Brown, and Sterling Shepard, go here;for updates onLamar Jacksonand more ailing QBs, go here. For all the latest fantasy news, follow us on Twitter .MORE WEEK 12: | |Alvin Kamara injury updateUPDATE:Kamara (knee) .UPDATE 2:Both Kamara (knee) and Mark Ingram (knee) were absent from the media portion of practice on Monday. Tony Jones Jr. would be in line to start if neither can play against Buffalo.Kamara (knee) practiced in a limited capacity last Wednesday but didn't take the practice field again and was Bryan Shaw Jersey ultimately ruled out Friday. However, the Saints play on Thursday in Week 12, so we won't have much time to figure out his status. That also means we'll probably know early on. There's not much room for speculation here, so we'll see what happens later in the week.If he does play, he'll take on Buffalo, who was the No. 1 defense against fantasy RBs before Jonathan Taylor torched them for over 50 PPR points. However, we're not going to overreact here, so we still view the Bills as a tough matchup. Kamara ranks as our and . New Orleans is likely to start him off easy, and Mark Ingram will get plenty of touches in this one. It wouldn't even be surprising if Ingram out touches Kamara, but we know Kamara gets it done on efficiency. His ceiling is ultimately always the No.1 RB, but his injury and matchup drop him to a Mark Reynolds Jersey borderline RB1. If Kamara is out, Ingram will be an RB2.WEEK 12 PPR RANKINGS: | | | | | Aaron Jones injury updateJones after injury his knee in Week 10, so it's po sible he'll return this Sunday. Of course, that's far from a certainty, and we need to pay close attention to the practice reports heading into Sunday. Green Bay takes on the Rams, who are a top-12 unit against fantasy RBs. They aren't impo sible to score points against, but with Jones le s than 100 percent if he's active, he'll be downgraded to a lower-endRB2 in fantasy.For now, we're thinking Jones will likely mi s another week and rank AJ Dillon as the and .WEEK 12 STANDARD RANKINGS: | | | | | Cordarrelle Patterson injury updatePatterson (ankle) was actually pretty close to playing against New England last Thursday, so Jon Gray Jersey we'd think he's going to be available against Jacksonville. The Jags defense hasn't been as bad as you might expect against fantasy RBs, but Patterson's heavy involvement in the pa sing game means he can be an RB1 any given week.We like him as the and . If he's out again, fantasy owners should avoid the Falcons committee of Qadree Ollison, Mike Davis, and Wayne Gallman.Elijah Mitchell injury updateUPDATE:Mitchell.Mitchell (finger) was also close to playing in Week 12, but he was ultimately ruled out, clearing the way for Jeff Wilson Jr. to get the start. If Mitchell is back this week, we could see more of a committee with him and Wilson, so we'll have to see how it plays out against the Vikings.That said, Minnesota is the 11th-worst defense against fantasy RBs Jonathan Lucroy Jersey , so we rank Mitchell as the and leagues. He doesn't do much in the pa sing game, but he should received 15-plus carries and be in for the valuable touches around the goal line.