The biggest fight of this and many a year is cloaked in the sepia tones of nostalgia and hallmarked for an immortal place in the history of the hardest game.
Canelo Alvarez versus Gennady Golovkin for the middleweight championship of the world is being likened in prospect to some of the greatest ever fights in this classic division.
If the feverish anticipation proves justified then the winner will find himself exalted in the company of such legends as Sugar Ray Robinson, Marvin Hagler, Sugar Ray Leonard, Thomas Hearns and Roberto Duran.
Saul 'Canelo' Alvarez takes on Gennady Golovkin in a hotly-anticipated showdown on Saturday
The two fighters arrived in Las Vegas on Tuesday for Sin City's latest middleweight mega-fight
The Strip has previously hosted classics such as Marvin Hagler (right) v Thomas Hearns in 1985
The standard is demanding if one or both of Golovkin and Canelo is to be recognised as an all-time great middleweight.
These are some of the immortals they will be striving to emulate:
1) Sugar Ray Robinson
2) Sugar Ray Leonard
3) Marvin Hagler
4) Thomas Hearns
5) Roberto Duran
So declares Oscar De La Hoya, the Golden Boy promoter of Saturday night's prospective epic in the glittering T-Mobile Arena and himself a hero of the prize-ring.
'Canelo against Golovkin will go down in history,' says De La Hoya.
'It will be a fight talked about for many years to come. The way Hearns and Hagler and Leonard v Hearns are still being talked about more than 30 years later.'
So, also, believe the two men finally coming to battle as the best middleweights of this generation.
Golovkin throws Leonard's extraordinary victory over the seemingly-invincible Hagler - three years to the day after Sugar Ray had retired with a broken eye retina - into the mix with those phenomenal three rounds which climaxed with a bloodied Hagler knocking out Hearns.
Hagler's fight with Sugar Ray Leonard in 1987 was another unforgettable fight in Las Vegas
Canelo's promoter Oscar De La Hoya (left) says this fight will be