Gonzaga, 38, of Rio de Janeiro, has a mixed martial arts record of 17-11.
"I felt good and gave it my all," Santiago (0-1) remarked. "He hit me with some shots and gave 'em back. Not only does he have a big nose, he has a strong, big head, too."
UFC veteran Gabriel Gonzaga won his pro boxing debut against Alejandro Esquilin Santiago via four-round majority decision. pic.twitter.com/O7tNFLd1Qm
— Mike Fridley (@mikefridley) October 29, 2017