A few things to note here: Warren wasn’t even listed on the injury report to begin the week on Wednesday. Not only was he added to the injury report midweek yesterday, but he didn’t practice at all. That’s certain to raise some eyebrows, especially considering he was a full participant on Wednesday. At this point, we can only speculate what might have happened between yesterday and the day before, but Pittsburgh is calling it a back injury for Warren going into the weekend. It appears at this time that there’s a chance Warren ends up not suiting up against the Ravens, but Friday’s injury report will shed the most light on the situation and whether or not fantasy managers should have a backup option ready. Warren had earned season highs in snaps share, rush attempts share, and route participation last week as he made his way back from another injury that cost him two games earlier this year. If Warren is unable to go, Najee Harris would receive a considerable upgrade against a tough Ravens run defense in Week 11. Cordarrelle Patterson could also be in line for additional touches, though he likely won’t be useful in any lineups outside of the deepest leagues.