The two men first met back in in 2012, during Kiyota's first reign as the champion, when Kiyota won in 7 rounds. The men then rematched the following year, with Kiyota winning in 4 rounds to become a 2-time champion.
Since their second bout Kiyota has gone 5-0 (5), defending the title thrice against weak opponents and fighting twice about the limit in stay busy bouts. The champion hasn't looked great, and was dropped a couple of fights back by Kajornsak Sithsaithong, but has found a way to see off his limited opposition. Matsumoto on the other hand has gone 2-0 (1) though has been fighting at Light Heavyweight, and facing some dire Thai opponents.
It's fair to say, that like their first two bouts, Kiyota will be the favourite and should be much fancied to win.
In the ring the champion is a limited fighter, with spiteful power. He can box, a bit, but isn't a practitioner in the sweet science and is instead a puncher, as seen by his record. Whilst his skills aren't the best the biggest issue is his lack of speed which will hold him back from ever really moving to the top level, despite having fought for a world title in 2013 against Robert Stieglitz.
Whilst the champion is limited he does have that power and aggression to turn bouts around and see off opponents, as shown by an impressive 79% stoppage rate. That power isn't something the challenger has and he's also rather limited. In fact Matsumoto is very limited and lacks the toughness to go to the top, in fact he has been stopped in 3 of his 4 losses, and was exposed as being very fragile to the body in one of those losses.
Whilst Kiyota has shown some issues with over-looking opponents in recent times we can't see him over-looking Matsumoto here, and instead we suspect Kiyota will see off his foe inside 6 rounds to retain his title. Hopefully next time out Kiyota will face a more testing opponent than a man he has already stopped, twice.