Peterson appears to shout at Sean Payton on sideline

New Orleans Saints running back Adrian Peterson may still be getting used to his new surroundings.

During Monday's opener against the Minnesota Vikings, Peterson appeared to be upset (possibly due to his low usage in the first half), yelling in Payton's direction several times to no avail, before the head coach finally paid attention.

It could be a minor detail in the heat of battle but Peterson is probably still adjusting to sharing the backfield with Mark Ingram and Alvin Kamara.