Many of the sports most dominant fighters throughout history have taken losses and this is the same today with many of the top rated fighters such as Wladimir Klitschko, Manny Pacquiao, Saul Alvarez, Adrien Broner, Juan Manuel Marquez, Carl Froch, Erislandy Lara, Miguel Cotto and literally hundreds of others having tasted defeat before in their campaigns to the ring. Despite what many casual fans seem to think today in the Mayweather Era, a loss does not mean anything if a fighter can come back from it and rise again to the top of the sport. Fighters are generally more remembered for the quality of opposition rather than the raw figures.
Nevertheless there is something exciting about watching a fighter who has never tasted defeat. A man who has had his hand raised each and every time he has stepped through the ropes. Here is my personal opinion on the top batch of currently undefeated fighters in the sport today.