SAN ANTONIO - Saul "Canelo" Alvarez notched a 12-round unanimous decision victory over Austin Trout Saturday to unify the World Boxing Council and World Boxing Association light middleweight titles. Mexico's Alvarez remained unbeaten, improving to 42-0-1 with 30 knockouts as he retained his WBC title and handed Trout the first defeat of his career to capture the American's WBA belt. "This is for my brother," said Alvarez, whose brother Rigoberto was beaten by Trout in 2011 for the vacant WBA light middlewight crown. "It was a big motivation for this fight." The three judges at ringside scored it overwhelmingly in Alvarez's favor: 115-112, 116-111 and 118-109. Alvarez landed a sharp straight right that knocked down Trout seconds into the seventh round -- the first time the American had ever been down. –AFP