By Rafael Soto

San Antonio, Texas - Julio Cesar Chavez Jr. retained the WBC middleweight title Saturday night, earning a unanimous decision over fellow Mexican Marco Antonio Rubio. The scores were 118-110, 116-112 115-113 for Chavez, which drew a mixed reaction from the 14,120 in attendance Saturday at the Alamodome. Chavez (45-0-1-1) overcame a gutsy performance by Rubio (53-6-1) despite having some trouble entering the fight.

Nonito Donaire dominated the co-main event, winning a 12-round split decision over Wilfredo Vazquez Jr. to win the WBO junior featherweight title. Donaire (28-1), making his debut in the 122-pound weight class, won 117-110 on two scorecards and lost the third 115-112. Vasquez (21-2-1) went down in the ninth, staggered by a left uppercut before being dropped by a left overhand.