Overview

• Santos won 29-28 on all three scorecards after setting the tone with higher output in the opening two rounds.
• Chiasson mounted Santos in the closing minutes and threatened a rear-naked choke but failed to finish before the horn.
• Action was clinch-heavy throughout, featuring frequent knees and an accidental clash of heads in round two.
• Chiasson missed the bantamweight limit by 1.5 pounds at weigh-ins and declined an extra hour to continue cutting, frustrating Santos.
• The outcome went against betting expectations, as Chiasson entered as roughly a 2-to-1 favorite and a top-five contender.