Salgado wins in 73 seconds
Juan Carlos Salgado of Mexico knocked out Jorge Linares of Venezuela in the first round in Tokyo on Saturday to win the WBC super featherweight title.
Salgado sent Linares to the canvas with a left to the head and the bout at the Yoyogi National Gymnasium was over after just 73 seconds.
Salgado, making his first attempt to win a major title, improved his record to 22-0-1, with 16 knockouts. Linares suffered his first professional loss to slip to 27-1; 18.
Linares had held the belt since beating Oscar Larios in July 2007, and retained it when he knocked out Gamaliel Diaz, Whyber Garcia and Josafat Perez.
In a WBC super bantamweight title bout, Toshiaki Nishioka of Japan retained his belt when Mexico's Ivan Hernandez was unable to continue after the third round.
Hernandez traded punches until the end of the third round but did not come out for the fourth after it was feared he had a broken jaw.
Nishioka improved to 35-4-3; 21. Hernandez dropped to 25-4-1; 15.
The 33-year-old Japanese, a former WBC champion at bantamweight, claimed this title in September last year when he beat Thailand's Napapol Kiatisakchokchai on points. He retained it with knockout wins over Genaro Garcia and Jhonny Gonzalez.