Rizin Fighting Federation has had to invoke an infrequently used rule ahead of Rizin 42.
As for the main event, former champ Asakura hit the scales at 134.2 pounds. The 19-4 fighter is looking to bounce back from a defeat to Hiromasa Ougikubo, which snapped a three-fight win streak. Meanwhile, Motoya (33-9, 1 NC) has won his last five fights, and checked in at 134.4 pounds.
Rizin 42 will air live on Fite.TV starting at 1 a.m. ET/10 p.m. PT on Saturday morning.
Rizin 42 Weigh-in Results:
Kai Asakura (134.2) vs. Yuki Motoya (134.4)Naoki Inoue (134.2) vs. Juan Archuleta (132.6)
Roberto Satoshi de Souza (155.9) vs. Spike Carlyle (156.5)
Kota Miura (144.8) vs. Ren Sugiyama (145.3)
John Dodson (125.4) vs. Tatsuki Saomoto (125.6)
Takahiro Ashida (145.1) vs. Kazumasa Majima (145.3)
Yuta Sasaki (145.1) vs. Boyd Allen (145.1)
Atsushi Kishimoto (156.3) vs. Viktor Kolesnik (155.6)
Yuki Ito (125.2) vs. Erson Yamamoto (125.3)
Takuya Yamamoto (147.5)* vs. Takeji Yokoyama (145)
Ramazan Temirov (126.3) vs. Yuta Hamamoto (126.6)
* Yamamoto missed weight and has received a red card. If Yamamoto wins, it will be ruled a no contest.