Adrian Peterson (knee) forced to adapt to Vikings' shotgun-heavy offense

The Minnesota Vikings' offense has become more shotgun heavy since running back Adrian Peterson (injured reserve) went down with a knee injury in Week 2.

What It Means:

Minnesota has utilized the shotgun 66.7 percent of the time since offensive coordinator Pat Shurmur took over. For his career, Peterson is averaging just 3.8 yards per carry from the formation, compared to 4.9 when the quarterback lines up under center. It's another reason to be bearish on Peterson's fantasy outlook upon a possible Week 16 return.

Among the 77 running backs this year with at least 30 rushing attempts, Peterson's -0.29 Rushing Net Expected Points per attempt ranks above only James Starks' (-0.32).