Minnesota Vikings running back Adrian Peterson wants to bring his weight up from 217 pounds to 225-230 pounds before the start of the regular season.

“Just to see how I feel,” Peterson said. “Before the season starts, I look forward to having my weight up so I’ll be able to see how it is when I run and cut and do things like that.”

Peterson thinks he’ll be able to retain his speed and quickness with the weight gain, but Vikings head coach Brad Childress isn’t so sure.

“Well, you know what? 230 is awful big,” Childress said. “From 17 to 30, just put a 10-pound sack of potatoes on your back and think of how that works for you.”

Peterson is already hands down the best running back in the NFL why would he want try to change anything? If it isn’t broke, don’t fix it. His perfecet combination of strength, speed and quickness is what makes him so special. If he gains too much strength and loses his quickness he’ll become an average running back like Larry Johnson.