Image source, Getty Images
Oscar Collazo earned nan 10th stoppage of his career
ByPaul Battison
BBC Sport journalist
Oscar Collazo retained his flyweight world titles successful bizarre manner aft Jayson Vayson's area stopped nan conflict successful nan seventh information - overmuch to nan astonishment of nan Philippines fighter.
With Vayson nether unit but competing gamely against Puerto Rico's Collazo, his adjunct trainer jumped connected to nan apron to punctual nan referee to extremity nan title successful Indio, California.
Vayson walked backmost to his area wearing a perplexed look arsenic whistles and boos rang retired from arsenic baffled members of nan crowd.
The 27-year-old said he had mixed feelings connected nan stoppage arsenic Collazo, 28, retained his WBA and WBO belts.
"My area thought I was breaking. I wanted to fight. I respect nan determination of nan area for nan information of nan boxer," said Vayson.
Collazo knocked Vayson down successful nan first round, pinch nan challenger doing immoderate of his champion activity successful nan 4th - performing a number of assemblage shots.
When nan conflict was stopped, Collazo, who has won nan first 13 fights of his career, was up connected each 3 judges' scorecards.
In nan co-main, American Gabriela Fundora stopped Canada's Alexas Kubicki to clasp her undisputed flyweight title.
With Fundora continuing to present dense reward successful nan seventh round, nan referee stopped nan contest, extending nan 23-year-old's unbeaten grounds to 17.