Exepct some fireworks when undefeated boxers Joel Casamayor and Acelino Freitas square up in Las Vegas on Saturday.
The 30-year-old Casamayor, who won a gold medal for Cuba in the 1992 Olympics, is the World Boxing Association super-featherweight champion.
Freitas, once promoted by Frank Warren, owns the World Boxing Organisation title and has won all but one of his fights inside the distance.
The Brazilian went the distance for the first time in his last fight - a 10 round decision over Ghanian veteran Alfred Kotey - but looked impressive nonetheless.
On the same bill in September, Casamayor stopped Joe Morales in eight rounds, although he struggled to subdue his American opponent for much of the fight.
Although both fighters have shown respect for each other in the week leading up to the fight, there is certain to be some bad blood when the first bell rings.
That is because this fight has been postponed five times in the last year, each time because of Freitas.
Marriage and contractual problems affected his activity levels during 200,1 but, having sorted out his problems, Freitas is back, with Naseem Hamed's trainer Oscar Suarez in his corner.
Freitas' frequent withdrawals angered Casamayor, although he insists that he has nothing but the highest regard for his opponent's class.
Like all the best match-ups in boxing, this fight pits a skillful boxer (Casamayor) against a menacing puncher (Freitas).
To look at the two men physically, one would believe that this is a catchweight contest.
Freitas simply looks like a welterweight, with a wide chest and bulging biceps, while Casamayor looks like a typically skinny super-featherweight.
In his last fight, the Brazilian seemed to have modified his brawling style and seems more patient, content to box and wait for an opening.
Casamayor is a classic southpaw stylist, who works off a stiff left jab and straight right hand.
Neither has fought a genuinely great fighter, which is why the result of this fight is so important to both men.
For Casamayor, who defected to Miami in 1996, this is a chance to prove just how good Cubans can be at world class level.
His opponent is a very patriotic man, who sometimes enters the ring with young women, scantily clad in Brazilian colours, kicking footballs into the crowd.
If Freitas wins, the 26-year-old may go up another weight class and challenge former super-featherweight king Floyd Mayweather Jnr.
For Casamayor, victory will probably inspire him to attempt to unify the other titles in the division.
The battle shapes up as a battle between Freitas' power and Casamayor's finesse - BBC Sport Online believes that the Brazilian's bombs will take him to a seventh round stoppage.
Also on the card is Wayne McCullough's comeback fight against American Alvin Brown.
The Belfast man has been out of the ring for over two years since the British Boxing Board of Control suspended him after an irregular brain scan.
The Nevada State Authority has given McCullough the right to fight on and he returns in what is considered a formality as he builds towards another world title fight.