MMA Fighting has Floyd Mayweather vs. Mikuru Asakura live round-by-round updates for one of the top boxing fights of the year which takes place Saturday night at the Saitama Super Arena in Saitama, Japan. The main event is expected to begin around 1 a.m. ET on FITE TV pay-per-view. Check out our Mayweather vs. Asakura results page to find out what happened on the undercard. Floyd Mayweather will compete in his fourth boxing exhibition since compiling a 50-0 career record. The last time he competed at a Rizin event, he knocked out Tenshin Nasukawa. Mikuru Asakura is a mixed martial…