
News
Oscar Collazo Vacates WBO 105-Pound Title Hours Before Purse Bid; Ryusei Matsumoto Set to Be Elevated
Oscar Collazo (15-0, 12 KOs) relinquished his WBO 105-pound title on Nov. 2, cancelling the purse bid for his mandatory against interim champ Ryusei Matsumoto (9-0, 4 KOs).
The Kimster · Nov 2, 2026
