UFC Fight Night 257: Walker vs. Zhang was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on August 23, 2025, at the Shanghai Indoor Stadium in Shanghai, China. A light heavyweight bout between Johnny Walker and Zhang Mingyang headlined this event.

Cast:Johnny Walker, Zhang Mingyang, Aljamain Sterling, Brian Ortega, Sergey Pavlovich, Waldo Cortes-Acosta,

Genre:Action,

country:China,

Production:Ultimate Fighting Championship, ESPN,