There are many ways to win a bout in boxing but the knockout has always been the most visceral. It’s been the one that captures the world’s attention and the one that can catapult a boxer to a wider audience. There’s something definitive about a knockout win tha a decision, however comprehensive, often struggles to emulate. And a knockout speaks to the base part of us that enjoys boxing, the primal instinct that fires our blood when we watch two boxers compete. Knockouts have provided some of boxings iconic images and calls, from Ali stopping Foreman to Foreman stopping Moorer to Mercer stopping Morrison to Martinez dropping Williams to Marquez stopping Pacquiao to… well… Tyson. A knockout can come to define a boxer’s career… for good or ill… and today we look at the best knockouts of 2013.