Mayweather Jr. easily wins by knockout in Japan exhibition


              Boxer Floyd Mayweather of the U.S. watches mixed martial artist Mikuru Asakura of Japan after Asakura fell at the end of the first round in Saitama, north of Tokyo, Sunday, Sept. 25, 2022. (AP Photo/Hiro Komae.
            
              Boxer Floyd Mayweather of the U.S. watches mixed martial artist Mikuru Asakura of Japan after Asakura fell in the first round in Saitama, north of Tokyo, Sunday, Sept. 25, 2022. (AP Photo/Hiro Komae)
            
              Boxer Floyd Mayweather of the U.S. throws a right punch against mixed martial artist Mikuru Asakura of Japan before Asakura fell after the counter play in Saitama, north of Tokyo, Sunday, Sept. 25, 2022. (AP Photo/Hiro Komae)
            
              Boxer Floyd Mayweather of the U.S. throws a punch against mixed martial artist Mikuru Asakura of Japan in Saitama, north of Tokyo, Sunday, Sept. 25, 2022. (AP Photo/Hiro Komae)
            
              Boxer Floyd Mayweather of the U.S. throws a punch against mixed martial artist Mikuru Asakura of Japan in Saitama, north of Tokyo, Sunday, Sept. 25, 2022. (AP Photo/Hiro Komae)
Mayweather Jr. easily wins by knockout in Japan exhibition