Floyd Mayweather is prepared to put on a show against Mikuru Asakura at the main event of RIZN 38, a matchup that will fetch another multi-million payday for the retired boxer. The 46-year-old undefeated boxer will be entering his fourth exhibition bout against Mikuru Asakura, a Japanese professional combatant with a 16-3 record.Floyd Mayweather has flown to Japan, where he began his post-retired fighting career by beating Tensi Nasukawa. Despite his age, Mayweather still flexes impeccable body movement and has been pretty active in accepting fights.Watch Mayweather vs. Asakura press conference below:He fought Logan Paul, a more oversized and younger fighter, after facing Nasukawa. Following up against Don Moore, Mayweather will now offer a huge payday to Asakura by stepping through the ropes opposite him. That said, Asakura will also have a massive chance to land a shocking win, which no one has ever done against Mayweather. Here’s a look at the rule set for Mayweather vs. Asakura fight.Floyd Mayweather vs. Mikuru Asakura rules at RIZN 38Floyd Mayweather vs. Mikuru Asakura will only be a three-round contest. The fight will be ruled a no-contest if both men take the matchup to the final bell. However, stoppages will be allowed which will allow both men to offer a slugfest against each other. View this post on Instagram Instagram PostAsakura has won 10 of his 16 wins via stoppage, while Mayweather has 27 KOs in 50 wins. This means that Asakura has a better pro stoppage record than 'Money' Mayweather and that can play a pivotal role in determining the outcome of the bout.How to watch Floyd Mayweather vs. Mikuru Asakura live? Full fight cardMayweather vs. Asakura will be streamed live on FITE TV. The PPV price of the event is $19.99 in the USA and £17.73 in the UK. Streaming the fight via any other service is illegal and punishable by law. One can contact their local television distributor to learn more about the RIZN 38 card ft. Mayweather vs. Asakura as the main event.Main cardFloyd Mayweather vs Mikuru AsakuraKouzi vs JizzyYoshinari Nadaka vs Bandasak So TrakunpetKota Miura vs Bunchuai PhonsungnoenFull fight cardKyoji Horiguchi vs Yuto HokamuraSeika Izawa vs Anastaysia SvetkivskaAyaka Hamasaki vs Si Woo ParkSoo Chul Kim vs Hiromasa OugikuboShoma Shibisai vs Callyu GibrainnKyohei Hagiwara vs Chihiro SuzukiJuri Ohara vs Luiz Gustavo