UFC Fight Night: Brunson vs. Machida was a mixed martial arts event produced by the Ultimate Fighting Championship held on October 28, 2017, at Ginásio do Ibirapuera in São Paulo, Brazil.

Lyoto Carvalho Machida is a Brazilian professional mixed martial artist and karateka. He formerly competed for the Ultimate Fighting Championship (UFC), where he was a former UFC Light Heavyweight Champion, as well as a UFC Middleweight Championship title challenger. He most recently competed in Bellator MMA in the Light Heavyweight and Middleweight divisions.