Michael Carbajal knocked out Panama’s Leon Salazar 45 seconds into the fourth round at Scottsdale, Ariz., Saturday in the first defense of his International Boxing Federation light-flyweight title.
Carbajal, 18-0 with 12 knockouts, knocked down the top-ranked challenger with a left uppercut to the head late in the first round and ended the bout with a left hook on the chin.
The loss was the first in the last 16 fights for the 23-year-old Salazar (15-3-1).
Massimiliano Duran retained his WBC cruiserweight title in Ferrara, Italy, when French challenger Anaclet Wamba was disqualified for butting in the final seconds of the 12th and last round.
Duran (15-2) was knocked down in the 11th round and seemed to be on the verge of defeat. Wamba knelt in despair at the center of the ring as the disqualification was announced.
“The title was mine already,” said Wamba, close to tears.