Of the two men it's Guzman who is more well known. He's the champion and he's proven his ability against a series of notable fighters. That's included stoppage wins over the likes of Christian Esquivel, Danny Aquino, Daniel Rosas and most notable Shingo Wake, who he beat in July to win the title in Japan. The only blotch on his other wise perfect record is a no contenst from 2013, in a fight with Luis Hinojosa and since then he has stopped 11 foes in 48 rounds.
Although not the smoothest boxer, or the most rounded of fighters Guzman is a a monster and every shot he lands is damaging. His shots all look concussive and his belief in his power is incredible. Not only does he appear to be a big puncher but, worryingly for opponents, he appears to take a good shot too and has solid stamina allowing him to work at a high rate through out the bout, a surprise for such a banger. Whilst he did dominate Wake there were times he looked like he was flagging, before coming back a round later looking rejuvenated and it's clear that he's going to be a nightmare to fight for anyone in the sport.
Whilst Guzman is a monstrous Super Bantamweight with frightening power and physical strength the same cannot be said of Oguni, who is more of a pure boxer with skills and counter punching, along with speed to burn. Early in his career Oguni looked like a world champion in the making, and one on the fast track to the top. In just his 11th bout he claimed the OPBF Super Bantamweight title, defeating Roli Gasca, and defended it 3 times. Sadly though his rise was ended in 2013 by Wake, who totally dominated him before scoring a 10th round retirement win against Oguni, who looked under-powered. Since that loss Oguni has won the Japanese title and scored notable wins over Yasutaka Ishimoto, Taiki Minamoto and Mike Tawatchai, stopping Tawatchai in 5 rounds earlier this year.
Although Oguni is a pure boxer he has shown an improvement in power recently stopping his last 3 foes, including Tawatchai, and appears to be a fighter who is maturing into a more rounded fighter. He is still a speed based fighter but one who appears to be growing more confident. That confidence could cost him here if he decides to stand his ground and instead he will have to stay on the move, keep Guzman of balance and try to frustrate and tire out the champion.
Although Oguni is a genuinely credible top 10 top of Super Bantamweight this is an incredible tough bout for the challenger and one that we don't see him coming out on top of. We think Oguni has the potential to reach the top, but this bout is one that his lack of fire power will cost him and Guzman will likely stop him in the middle rounds, if not earlier. Oguni has the ability to move for a few rounds but once he feels Guzman's power we suspect he'll look to survive before being broken down.