Rony Mariano Bezerra is a Brazilian professional mixed martial artist who competed in the Featherweight division of the Ultimate Fighting Championship. A professional MMA competitor since 2006, Bezerra was also the Featherweight winner of Globo's The Ultimate Fighter: Brazil. His nickname is based on Friday the 13th film character Jason Voorhees; he wears the Voorhees mask on his walk to the Octagon.