Nate Diaz Underbite Stats

MMA fighter Nate Diaz is one-half of the Stockton fighting duo the Diaz Brothers. Nate's underbite somehow gives him a soild chin and he frequently absorbs lots of punishment while also dishing out his signature strike, the Stockton Slap.
Nathan Diaz's Stockton-bred underbite
Does Nate Diaz's underbite contribute to his strong chin?