Kubo claimed the WBA Super Bantamweight world title last April, when he scored a 10th round retirement win over veteran Nehomar Cermeno. Sadly however his reign was a short lived one as he was stopped in 9 rounds by Daniel Roman in September, as he attempted to record his first defense of the title. The Shinsei man, 27, has always had a long and gangly frame that should be filled out better at 126lbs, but this will be his first contest since the defeat to Roman and it is a very tricky comeback fight for the man some viewed as Shinsei's next star.
Although less successful at world level Osawa is arguably more well known, thanks to his 2016 fight in Las Vegas with WBO Featherweight champion Oscar Valdez. Although Osawa was stopped in 7 rounds by Valdez he did show the heart and determination that we typically see with Japanese fighters. Since that loss he has reeled off a trio of wins, including notable victories over Julio Cortez and Alexander Mejia, who were both world ranked prior to facing Osawa. Although clearly a solid contender Osawa is now 32 and another loss likely spells the end of his dreams to become a world champion.
The bout will headline a Shinsei Gym card, under the "Real Spirits" banner and will essentially be a worldtitle eliminator, with both men having WBA world rankings at Featherweight.
At the moment no details regarding the under-card have been released, but with so many top Shinsei fighters in action in March we're next expecting too much depth this show.