Given McGregor's non-existent boxing experience and Mayweather's reputation as one of the finest fighters in history, many observers are already predicting a mismatch. Mayweather will reportedly be paid over 100 million US dollars for the contest, which will be broadcast on pay-per-view networks across the world. Mayweather boasts one of the finest records in the history of boxing. After 49 professional fights he has 49 victories, including 26 by knockout. In his 19 year professional career, he was only knocked to the canvas once – by Carlos Hernandez in 2001 – in a fight he won by a unanimous decision. Mayweather, who was ranked by ESPN as the greatest pound for pound boxer of the last 25 years in 2016, needs just one more win to surpass Rocky Marciono’s flawless record of 49-0. Let me start by saying that I don't think this fight is going to happen. There is just no way. The UFC will never take the risk of letting their star lose in a Boxing match and Mayweather would never fight in the UFC under MMA rules. But if Conor McGregor and Floyd Mayweather were to fight in Boxing and MMA what would the fights look like? In Boxing how long would the fight last? In MMA how long would the fight last? I am certain that both fighters would win in their respective sport but personally I see McGregor lasting a bit longer in the Boxing ring than Mayweather in the Octagon.