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.
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Johnny Walker
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Zhang Mingyang
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Aljamain Sterling
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Brian Ortega
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Sergey Pavlovich
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Waldo Cortes-Acosta
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Su Mudaerji
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Kevin Borjas
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Taiyilake Nueraji
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Kiefer Crosbie
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Gauge Young
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Hayisaer Maheshate
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Charles Johnson
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Lone'er Kavanagh
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Zhu Rong
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Austin Hubbard
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Kyle Daukaus
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Michel Pereira
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Yi Zha
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Westin Wilson
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