Detroit Lions running back David Montgomery's cryptic social media activity has raised some questions about his future with the team.

Amon-Ra St. Brown and David Montgomery both showed up on the Lions injury report for Week 17. We break down what it means for fantasy football decisions.

Detroit Lions running back David Montgomery has caught the attention of supporters with his recent actions online. Earlier on Tuesday morning, a post on social media highlighting his uniform in the Lions' locker room went viral, with many speculating the veteran running back is unhappy.

The Week 17 matchup for David Montgomery and the Detroit Lions has them taking on the Minnesota Vikings at 4:30 p.m. ET on Thursday, Dec. 25. Montgomery is on the injury report this week (questionable, illness). No other RB is on the injury list for the Lions. Montgomery has 649 yards (43.3 ypg) on 140 carries and has scored eight rushing scores.

The Detroit Lions have used David Montgomery less this season than ever before. And on Tuesday, Montgomery used his Instagram in a way he rarely does: He posted something pretty darn cryptic that left fans concerned. This is what Monty posted on his story:

Read on for my Lions vs. Vikings anytime touchdown picks for Christmas Day. Over the past couple of seasons, we’ve seen Jahmyr Gibbs and David Montgomery form a lethal one-two punch, but this season it has started to feel like Gibbs has really become the star of the show.

David Montgomery's lack of usage has some explainable nuances, but ultimately Dan Campbell has done a lot talking with no follow-through in recent weeks.

Detroit Lions running back David Montgomery has been in the news with rumors of his exit from the NFC North franchise growing over the last few days.