Running Back Size

[CmdoRob]

I am five foot ten inches, and 175 lbs, am I too small to play as a college or NFL running back?

 

[DaPlayah]

No you are a good size, but you could probably add around twenty pounds of mass, preferably muscle with the right diet and exercise plan.

 

[BCrazy]

adding more weight would be preferable, but your speed, quickness, and agility are what really matters.