For Diego Sanchez, it took 12 years of his UFC career before somebody really broke past his stone-cold solid chin.
There had been a TKO stoppage and some decision losses along the way, but 2017's KO loss to Al Iaquinta was the first time that the Nightmare had been properly knocked out. Now 37 years of age, Sanchez has so often been an absolute glutton for punishment in his career.
The New Mexico-born fighter is one who loves nothing more than getting hit, moving forward, getting hit again, and again moving forward. Diego Sanchez has made a career of taking massive shot after massive shot, and key to the success of that approach is having a chin that simply refuses to give in.