Having taken trash-talking to record levels of excess, top fighters Floyd Mayweather Jnr and Conor McGregor now must back up their wild boasts where it counts – in the ring.

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My first statement is simple and staright to the point: I don’t see any way for Floyd Mayweather to lose to Conor McGregor in a boxing match, but if he does, it will be the biggest sporting upset in history. Coming from retirement, Mayweather will be aiming for a record 50th successive win as a professional. McGregor, for all the hype, will be engaging in just his first pro contest. Yet this fight has more to do with marketing smoke and mirrors than boxing. Both will cash in like never before with their superstar status guaranteeing millions of eyeballs on televisions around the world.

Although it is hard to tab anyone a loser with the amount of money already at stake, McGregor has vowed to destroy Mayweather inside four rounds, although that is the sort of boast Mayweather has heard many times before. Forty-nine opponents have tried to beat him and 49 have failed including the big boxing fight in the history against Manny Pacquiao (May 2, 2015).

Mayweather may flaunt money but if you study him, you realise money isn’t the only thing that matters to him. Mayweather is a slick operator who fights by the maxim of hitting and not getting hit. He has fast hands and the best defence in the game, qualities he’ll need against McGregor.

A student of the game, a second-generation fighter whose uncles were also boxers, this fight wthout a doubt iis more about fame but legacy, what really matters to him.

The undefeated boxer Floyd Mayweather Jr. has an impeccable 49-0 professional boxing record. A loss to McGregor this weekend will be a humiliating upset; a loss to a fighter with no prior boxing experience on the biggest stage combat sports has ever seen.

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IT'S ON! Only 3 days to go until #MayweatherMcGregor.

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McGregor, the reigning UFC Lightweight Champion, and former UFC Featherweight Champion, has established himself as the biggest pay-per-view draw in MMA history. The Irishman is bigger and stronger and will be unorthodox given his unfamiliarity with boxing.

With the factors in his favor, including my pride and self confidence talk about him around this office, Mayweather has to dominate this weekend! Or else, some of us will have a long-ass next week when we raise our voices among pundits.