Every start 'em, sit 'em decision is crucial this time of year, and none are more important than those at running back. Heading into Sunday, we are keeping tabs on standout RBs Rhamondre Stevenson, Josh Jacobs, and Damien Harris, all of whom are "questionable" and will force fantasy owners to check for updates and potentially make some last-minute substitutions or waiver-wire pickups.Below, we'll give you the latest news on these Nicklas Backstrom Jersey running backs and break down how their injuries could potentially affect the Week 15 fantasy landscape.WEEK 15 INJURY UPDATES: | WEEK 15 FANTASY PICKS: | | UPDATE:NFL Network's Ian Rapoport reported Sunday morning that Stevenson has a " " of playing in Week 15 against Vegas.UPDATE 2:Stevenson is officially ACTIVE.Stevenson (ankle) was listed as "questionable" ahead of the Patriots' late-afternoon matchup against the Raiders. The second-year running back did not practice on Wednesday and Thursday but was a limited participant in practice on Friday. Stevenson seems like a true game-time decision, and since he plays a late-afternoon game, fantasy owners need a pivot from the late-afternoon/prime-time games if they're going to wait for him.Without Stevenson or Damien Harris ( T.J. Oshie Jersey thigh) in the lineup for most of the game last week, the Patriots leaned on rookies Pierre Strong Jr. and Kevin Harris. If Stevenson and Damien Harris are both ruled out for Sunday's game, Strong and Kevin Harris will both be flexes against a Raiders' defense that allows the seventh-most fantasy points to RBs this season. Strong has more upside because of his explosivene s, but both should see 10-12 touches. If Stevenson plays, he remains a must-start and kills Riley Sutter Jersey almost all of Strong and Kevin Harris' value, but if Stevenson is out and Damien Harris plays, then Strong would still have some low-end flex appeal.WEEK 15 PPR RANKINGS: | | | | | UPDATE:NFL Network's Ian Rapoport reported Sunday morning that Jacobs on Sunday against New England.UPDATE 2:Jacobs is officially ACTIVE.Jacobs (quad, hand) was ahead of Sunday's game against the Patriots, according to ESPN's Paul Gutierrez. However, the veteran running back plans to play despite wearing a splint on his right pinky.We've seen Jacobs listed as "questionable" for multiple weeks because of his quad injury, but he's ultimately ended up playing. Even though he's dealing with a new finger injury, fantasy owners should not be concerned and comfortably start him as their RB1 for Week 15. Jacobs does not have a great matchup on Sunday, as the Patriots allow the second-fewest fantasy points to RBs this season, but you can't sit him this time of year. If he is a surprise scratch, Zamir White and Ameer Abdullah would split touches, but neither has much upside given the matchup. White Washington Capitals Jersey has more value in standard leagues, while Abdullah would be better suited for PPR formats.WEEK 15 STANDARD RANKINGS: | | | | | UPDATE:Harris was on Saturday Jaromir Jagr Jersey afternoon.Harris (thigh) was on the Patriots' final injury report ahead of their matchup against the Raiders. He was a limited participant throughout the week after mi sing the past two games.If Stevenson is ruled out and Harris is active, then Harris has some value as an RB2 against a below-average Raiders' defense on Sunday. Pierre Strong Jr. would still be a boom-or-bust flex, but Harris should handle most of the touches. If Stevenson and Harris are active, then Harris would be a TD-dependent flex. If both Stevenson and Harris are out, Strong and Kevin Harris would each have flex value.