SAO PAULO – Self-described “nerd” Caio Borralho quit his chemical engineering studies to become a professional mixed martial arts (MMA) fighter, part of a new generation looking to reinvigorate the sport in Brazil, home of legendary champions.
With his good-natured face and glasses, Borralho, 30, does not fit the stereotype of the scowling, pain-inflicting Brazilian behemoths who have made the country famous as a home of Ultimate Fighting Championship (UFC) icons.
But he is part of a wave of young Brazilian…