Vitali Klitschko punished Shannon Briggs for 12 brutal rounds Saturday to retain his WBC heavyweight title with a unanimous decision. The Ukrainian champion dominated the action but never knocked down the American challenger. "I am very surprised by how much he took," Klitschko said. "He's got a huge heart." The judges scored it 120-107, 120-107 and 120-105 for Klitschko, who improved to 41-2. Briggs dropped to 51-6-1. Read more: http://sports.espn.go.com/sports/boxing/news/story?id=5693128