This weekend the eyes of all boxing fans across the globe will be on one place: the MGM Grand Garden Arena just off the Las Vegas Strip.
The battle being called the Fight of the Century by some, and the hype of the century by others, will feature Manny Pacquiao and the undefeated Floyd Mayweather. While the stats show Mayweather with a perfect 47-0 record as a professional, he has lost.
The one match Mayweather admits he lost fair and square, the other loss has been in dispute for 20 years, was against Augie Sanchez during the 1996 United States Olympic trials.
Sanchez told KNPR's State of Nevada that it was really one good punch in the first round.
"It was a good right hand to the head that rocked him a little bit," he said, "When I hit him I felt like I was punching through something and not to it. It passed right through him like he wasn't even there."
The fight went two more rounds and in the third round Sanchez hit him with a solid left hook. He won 12 - 11.
In times past, that would have been his ticket to the games, but because of a rule change in the Olympic trial process, Sanchez and Mayweather had to fight two more times, both of those matches were won by Mayweather.
So, it was Mayweather who went onto the Atlanta Olympics Games, winning a bronze after that disputed loss against Bulgaria's Serafim Todorov.
Sanchez became a professional fighter for five years, known as Kid Vegas. He made a failed attempt at a world title, but then retired with a record of 28 wins and three losses.
"It was time for me to do it," Sanchez said, "I didn't want to be one of those fighters who needs a GPS to find his way home."
Sanchez now trains fighters in a gym a block from Las Vegas Boulevard, which, while not far from the MGM Grand, is really a world away.
Sanchez isn't bitter about what might have been or ruminating about the past, instead, he's happy with what he did accomplish.
"I feel like I left a mark on boxing," he said.
So his advise for Manny Pacquiao? Do what he did when he beat Mayweather: hit him hard - first.
"He has to land the big shots in the beginning and keep the pressure on Floyd," he said.
He said that if Pacquiao believes he can out box him, he's wrong.
"Floyd is a very intelligent fighter. He knows how to adapt and improvise and overcome in the ring. If you have a plan he's going to make his plan better."
Augie Sanchez, trainer and fighter