If you ask the majority of boxing experts, they'll tell you that Saul Alvarez has a chance of upsetting the odds on September 14.
The undefeated Mexican has been lauded as the greatest threat to Floyd Mayweather's perfect record, and for good reason, but it will take a career best performance for victory to be even remotely feasible.
Mayweather's legacy has already been secured win or lose come fight night with his next opponent. Brash and arrogant as he is, the American has sublime victories over numerous world-class fighters including Oscar de la Hoya, Ricky Hatton, Miguel Cotto and Juan Manuel Marquez.
Alvarez on the other hand, though almost on par with his opposite man in terms of wins, has fought next to no one in terms of recognised quality.
The task on 'Canelo's' hands is thought by many to be virtually impossible; a statement I completely agree with.
One of Mayweather's most brilliant and rare traits is his manipulation of styles once he's in the ring. The 36-year-old doesn't so much play to his own strengths as nullify his opponent's, and his ability to adapt his style to provide maximum efficiency is second to none.
This is key not only once the first bell rings, but also in the run-in to the bout.
Alvarez is going to find it especially hard to train to fight in a way that Floyd won't be able to combat. If Alvarez presses, Mayweather will counter and wait for him to tire, if Alvarez stands off, Mayweather will slowly lay a beat down and dictate the trading of blows to his advantage.
Now, call me a suck-up, but in my view another obstacle in the way of the 23-year-old challenger is an apparent lack of viable sparring partners suitable for preparing him to fight the world's best.
Short of sparring with Mayweather himself, there is no one that Alvarez can recruit that can fully condition him for the fight to the point where fighting Mayweather seem's like a routine thing. Put simply, there is no other fighter in the world like Floyd Mayweather. He isn't just the best in the world, nor his generation; he is one of the best in history.
I harbour no doubts that Alvarez will turn up on fight night in the shape of his life, and I also don't think for one second that it's going to be a whitewash. However, short of Mayweather turning up and putting in an uncharacteristically bad shift, I simply can't see how Saul Alvarez is going to emerge with his record unblemished.
In my opinion, at the current time, Alvarez is too young and Mayweather is still unrivalled in terms of skill. If Alvarez can turn up and do what no one else has been able to do so far then I will truly be surprised.
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