Long before the UFC was a $4 billion acquisition, MMA was a grassroots sport struggling for survival, fed by rabid Internet fans who drove hours to see Indian casino shows. That’s where Charles “Mask” Lewis first made his mark. Out of his car trunk, the native of San Bernardino, Calif., sold T-shirts sporting the logo of MMA’s first apparel brand, TapouT. Lewis sponsored dozens of fighters, paying them out of his pocket before he paid himself.