The exciting Japanese puncher first had his opponent named as Venezuela's unbeaten Ernesto Espana (9-0, 6). That however was quickly retracted and Espana was suddenly changed to Argentina's light punching Walter Dario Diaz (8-10-1, 1). Diaz has himself been replaced by 32 year old Venezuelan Lightweight champion Luis Araguayan (11-7-0-1, 6).
The bout isn't a great one for fans however it will, of course, be fun to see the explosive Iwabuchi back in the ring for the first time since his stoppage loss to Keita Obara last August in an OPBF title fight.
Whilst Araguayan isn't a great opponent he has fought one notable opponent, Jaider Parra. Parra, best known for being broken in half by a Takashi Uchiyama body shot, defeated Araguayan by 4th round TKO back in 2010.
With 5 stoppage losses on his record we have to suspect that Araguayan won't stand up to an Iwabuchi assault however the bout does seem to be a notable upgrade from the Diaz fight which looked like a horrible mismatch. It also seems like a fitting bout to help rebuild Iwabuchi's confidence after losses in 2 of his last 4 bouts, including the loss to Obara and a brutal war with Min Wook Kim back in April 2013.