Years ago, being undefeated was a sign of prestige in the boxing world as it was hard to achieve. Rocky Marciano more or less set the standard when he retired as heavyweight champion with a 49-0 record. Joe Calzaghe of Wales managed to pull it off by retiring at 46-0 and Floyd Mayweather may also do it if he doesn?t fight again as he?s 41-0.
But it?s very hard to make it through a boxing career these days without suffering at least one defeat. When Muhammad Ali was finally beaten, by Joe Frazier back in 1971, millions of fans around the world were devastated as they believed Ali was invincible. But in the end, all of the greats lost once or twice, including Alexis Arguello, Sugar Ray Leonard, Tommy Hearns, Marvin Hagler, Wilfredo Benitez, Roberto Duran, Mike Tyson, and the Klitschko brothers.
When it comes to today?s pound-for-pound
