Juan Manuel Marquez is one of the best pound for pound fighters in the history of boxing, but with a loss to Manny Pacquiao in their third fight there would hang a blemish upon his record forever.
The black stain of "Pac-man" will be one thing that hangs over him and it will be his Achilles heel fight. Pacquiao would become synonymous with the legacy of Marquez as being the what if?
People would be left to wonder what if he had overcome "Pac-man". What if he did not have that one fighter that he never will be able to overcome?
The fight will also leave a cloud of the doping allegations that are surrounding it.
As the aging Juan Manuel Marquez prepared for the fight, he put on a considerable amount of weight that has put him under the microscope and made many formulate the idea that he could have used performance enhancers to compete against Pacquiao for the third time.
The doping allegations, whether or not proven, will be something that becomes a scapegoat for Pacquiao supporters and will leave a strong argument against Marquez and his legacy.
A loss will sink everything that Juan Manuel Marquez has worked so hard to build up.
Marquez has won eight different titles in three different weight classes. This is an incredible feat, but with doping allegations and the albatross of Pacquiao to hang over him forever.
Juan Manuel Marquez will never be able to bounce back if he loses to Manny Pacquiao in the third and likely final time this fight will ever occur.