It was what some boxing fanatics would call a "barnburner."

Nicaragua's undefeated fighter Roman Gonzalez earned a third world title belt with a ninth-round victory over WBC flyweight champion Akira Yaegashi at Yoyogi National Gymnasium No. 2 on Friday night.

Gonzalez, a former champion in the WBA minimumweight division and as a WBA light flyweight, won his third world title belt, maintaining his perfect record at 40-0 (34 KOs) as a professional boxer.