Minnesota Vikings RB Adrian Peterson thinks his body can hold up as long as he wants to play in the NFL, but he doesn’t know how much longer he wants to go through the rigors of the NFL. ‘Training camp, going through the grind, OTAs and all that, that will definitely be the deciding factor,’ Peterson said. ‘Physically, I’ll be good. It’s just mentally, like with OTAs, I’m out there practicing, I’m going, I’m putting in work. But it’s so repetitive that it’s more suited toward the young guys and getting them into the system. It gets kind of boring.’