Who is James Harrison?

#fbf @maurkicepouncey video credit @a_chickillo wth the cameo hold the bench #teamwork 😂

A post shared by James Harrison (@jhharrison92) on Jul 21, 2017 at 1:37pm PDT

One of 14 children. No college scholarship. Undrafted. 6’0″. And an Instagram loaded with insane amount of weight being pushed around. He is almost 40 years old. Who is this guy?!