Juan Manuel Marquez can forget about how close he came in his first two bouts with Manny Pacquiao.
Saturday night at the MGM Grand will be no different from previous results between the two, but the way it ends surely will.
Marquez isn't 34 years old anymore, in fact he's 38 and quickly nearing retirement.
Pacquiao is in his prime at age 32 and on the verge of becoming the best pound-for-pound boxer on the planet.
Marquez may still believe that he defeated Pacquiao in those previous battles, but his only shot at a victory over the Filipino fighter is to continue to argue those decisions until they are reversed.
Pacquiao has a potential date with Mayweather looming next year and Marquez's lopsided head will pose little obstacle to the millions of dollars that could be claimed next May.
Sure there are the "what if" scenarios that have been discussed if by under some crazy circumstances Marquez were to win, but the odds are stacked heavily against him.
Pacquiao is younger and he's the better boxer, which means he has the undeniable edge in this welterweight bout.
If he doesn't knock out Marquez midway into the fight, then he will no doubt outlast him through 12 rounds of boxing.
The longer the fight goes, the smaller Marquez's odds to win will become.
This is a fight for Pacquiao to prove that Marquez is all sour grapes at age 38, and nothing more.
Marquez has set out to show the world that he beat Pacquiao twice, but after Saturday night in Las Vegas he'll be primed for retirement having never beaten Pac-Man.