Huge underdog Sony Boy Jaro, a Filipino veteran that many regarded as a journeyman, upset Pongsaklek Wongjongkam with a shocking sixth-round stoppage in the reigning RING/WBC flyweight champ's native Thailand on Friday.
Jaro (34-10-5, 24 knockouts), just 22 days away from his 30th birthday, reportedly dropped Wonjongkam in the first, third and sixth rounds. The former two-time 108-pound title challenger lacked the technique of the 34-year-old defending champion, but he made up for his raw form with relentless aggression and punching power.
The victory makes Jaro the third lineal flyweight champ from the Phillipines after Malcom Tunacoa and Manny Pacquiao.
Wonjongkam (83-4-2, 44 KOs), a legend in Thailand, was attempting to make the fifth defense of the WBC title he won by outpointing then-undefeated Koki Kameda in Japan in March of 2010. The veteran southpaw, who turned pro in 1997, made 17 defenses of the WBC belt during his first reign.