Canelo Alvarez vs. Jaime Munguia fight results, highlights: Mexican champ retains undisputed crown by decision

LAS VEGAS -- Canelo Alvarez spent all fight week explaining that he's just different and was levels above his aggressive, unbeaten opponent in Mexican countryman Jaime Munguia. It turned out, he was right. Alvarez (61-2-2, 39 KOs) made the fourth defense of his undisputed super middleweight title on Saturday in a masterful yet grueling unanimous decision to hand Munguia (43-1) his first pro defeat. The 33-year-old Mexican icon took home judges' scores of 117-110, 116-111 and 115-112. CBS Sports scored …