Mikey Musumeci set to defend ONE Championship world title against Combat Sambo world champion

Reigning ONE flyweight submission grappling world champion Mikey Musumeci will defend his belt against combat sambo world champion Gantumur Bayanduuren at ONE Fight Night 6. In yet another chapter of the BJJ-versus-Sambo rivalry created by ONE Championship, the organization’s flyweight submission grappling champion, Mikey Musumeci, is set to take on

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