Rama, ON -- (Sports Network) - Panama's Celestino Caballero scored a fourth-round technical knockout of Steve Molitor to unify the super featherweight belts.

Caballero (31-2, 22 KOs) kept his WBC title and grabbed Molitor's (28-1, 11 KOs) IBF crown. The fight was stopped at the 52-second mark of the fourth round. He stunned Molitor late in round three and then knocked his opponent against the ropes in the fourth before the fight was halted.