There is only one fight that the public want to see involving Manny Pacquiao and a fourth bout against Juan Manuel Marquez is not it.

‘Pacman’ will take on four-weight world champion Marquez for the fourth time on December 8 at the MGM Grand in Las Vegas, Nevada.

In each of the previous three Marquez-Pacquiao fights there has been no definitive winner as they have ended in a draw, and a split decision as well as a majority decision in Pacquiao’s favour.

Floyd Mayweather and Pacquiao are widely recognised as pound-for-pound the best pugilists in the world but negotiations for a mega fight between the pair have fallen through on several occasions.

While Filipino Pacquiao, 33, has been unable to decisively defeat 39-year-old Marquez, his adversary Mayweather has. Although he was over the 10.7 stone weight limit when they fought, Mayweather completely dominated Marquez in 2009, dropping him once en route to a lopsided points decision.

Just like when they fought for the third time in November 2011, Pacquiao has so much more to lose than Marquez. Defeat to Marquez could ruin any chance of a mouth-watering bout against Mayweather materialising which has the potential to break pay-per-view records based on the global appeal of the match-up.

In his last contest against Timothy Bradley in June, Pacquiao – who landed almost 100 more punches than the American – was on the wrong side of the judge’s decision. So his stock still remains intact but he did not impress against Bradley.

Take nothing away from Marquez though. With a record of 54 wins (39 K.Os) and six losses, the Mexican is a proven warrior and a gifted counter puncher. While each bout from their trilogy has been close, Marquez deserves at least one win over his long-time rival.

He has been a thorn in Pacquiao’s side ever since they first fought in 2004 where Pacquiao floored Marquez three times in the opening round only for Marquez to thoroughly outbox Pacquiao for the remainder of the contest.

There are many common denominators between Mayweather and Pacquiao. Be it Oscar De La Hoya, Ricky Hatton, Shane Mosley or even Marquez - Mayweather and Pacquiao have beaten the same opponents but in very different fashion. However, we will never know who the better boxer is until they are in direct competition.

Marquez and Pacquiao have completed 36 rounds against each other and there has never been a clear victor. It is time for Mayweather and Pacquiao to finally lock horns and settle once and for all who the superior boxer is.