With Oscar Collazo vacating his WBO title, the WBO has now officially elevated Ryusei Matsumoto of Japan to WBO minimumweight world champion. Matsumoto (9-0) got elevated because he has been the WBO's interim champion since September when he defeated Russell Acosta Silveira. Meanwhile, Collazo remains the WBA champion in this 105-pound weight class, although he previously had a 112-pound fight scheduled before getting injured.
The WBO Championship Committee has received formal notice from Miguel Cotto Promotions that Oscar Collazo has relinquished his WBO 105-pound championship. Accordingly, the WBO canceled a scheduled purse bid for a fight between Collazo and WBO interim champion Ryusei Matsumoto of Japan. Matsumoto is expected to be immediately elevated to full WBO minimumweight champion status in accordance with WBO Rule. Collazo remains the WBA minimumweight champion. WBO president Gustavo Olivieri commented on social media, "The doors will always be open for Oscar Collazo. All the best to Team Collazo going forward."
PRIOR BOXINGTALK COVERAGE
NOV. 3, 2026: The WBO Championship Committee has received formal notice from Miguel Cotto Promotions that Oscar Collazo has relinquished his WBO 105-pound championship. Accordingly, the WBO canceled a scheduled purse bid for a fight between Collazo and WBO interim champion Ryusei Matsumoto of Japan. Matsumoto is expected to be immediately elevated to full WBO minimumweight champion status in accordance with WBO Rule. Collazo remains the WBA minimumweight champion. WBO president Gustavo Olivieri commented on social media, "The doors will always be open for Oscar Collazo. All the best to Team Collazo going forward."
OCT. 20, 2026: With Oscar Collazo's flyweight title shot called off due to his injury, he must now decide whether he wants to return to minimumweight. Collazo holds both the WBO and WBA titles at minimumweight (105 pounds).The WBO World Championships Committee has formally ordered negotiations between Collazo and WBO interim champion Ryusei Matsumoto (9-0) of Japan to fulfill the mandatory championship obligation and promptly terminate the interim championship status. Matsumoto becam einterim champion last month by defeating Russell Acosta Sivleira in a battle of unbeatens. Representatives of Collazo and Matsumto have fifteen days to reach an agreement. Should negotiations prove unsuccessful, the WBO will order purse bid proceedings.
SEPT 19, 2026: Puerto Rico's Oscar “El Pupilo” Collazo, who holds two of the four world titles at miniumweight has withdrawn from his scheduled flyweight title challenge due to a rib injury sustained in training camp. Collazo was scheduled to move up two weight classes to challenge another two-belt champion, Ricardo “El Niño” Sandoval, on October 10th at the Wintrust Arena in Chicago. According to Collazo's promoter, Golden Boy, the show will proceed with undefeated lightweights Floyd “Kid Austin” Schofield III (19-0, 13 KOs) and “Prince” Lucas Bahdi (20-0, 15 KOs) meeting in the main event for the vacant WBA lightweight title. Golden Boy and Most Valuable Promotions said additional details concerning the October 10th undercard will be announced once confirmed.
