Sosa KOs Rubillar in seventh to retain WBC light flyweight title

MEXICO CITY -- Edgar Sosa retained his WBC light flyweight title on Saturday night with a seventh-round knockout of Juanito Rubillar.

The 29-year-old Sosa (34-5-1, 18 KOs), who defended his title for the seventh time in 20 months, took control of the fight in the fourth round. A powerful left hook in the seventh rattled Rubillar, and Sosa kept throwing punches until the referee stopped the bout.

Rubillar (46-11-7), a 31-year-old southpaw from the Philippines, was considered a big threat to the Mexican, and he looked like it in the first two rounds. Then Sosa settled down and began dominating the fight at the Arena Mexico.

Sosa won the title with a close decision over Brian Viloria on April 14, 2007. He's already made defenses against Alberto Lazarte, Lorenzo Trejo, Roberto Leyva, Jesus Iribe, Takashi Kunishige and Sonny Boy Jaro.