There are times in the world of mixed martial arts where two fighters engaged in a pivotal match that would otherwise warrant an immediate rematch.
Chael Sonnen vs. Anderson Silva and the recently concluded Gray Maynard vs. Frankie Edgar trilogy are both two examples of what a warranted do-over should look like.
Competitive and scintillating throughout, all parties involved have earned that respect of finding a conclusion to a match that has seen no clear winner the first go-around.
Then, there are other bouts where a decidedly decisive ending merits no speedy return for the two fighters to be joined together again inside the cage.
So which subsequent bouts have taken place that should have been left to the single-bout saga?
Granted, the pair were never actually set in stone to fight, however the recently resurrected Pro Elite promotion has made their intentions known.
Originally, the two former world champions were rumored to face one another, though the head honchos of the organization ultimately opted to have both men face different opponents.
It's clear, however that the promotion is in a hurry to put this match together. Sylvia currently holds the edge in the rivalry, having gone 2-1 against the Belorussian, with their third meeting ending in a dismal and lackluster five-rounder, whereas their first two meetings ended in decisive first-round finishes.
A win over one another now means little in terms of rankings, since Arlovski and Sylvia have taken sharp declines in their career, thanks to several underwhelming performances, often resulting in knockout defeats for both, respectively.
It may not be a rematch that has happened yet, but it's something that we can unfortunately expect soon.
Originally, the two met some years ago at UFC 35, where then-champion Jens Pulver defended his title against "The Prodigy" BJ Penn, who challenged for a world title in just his fourth fight as a professional.
The daunting task of competing for a belt was something that was Penn, then 23, knew nothing about. The pressure was on the Hawaiian, who ultimately dropped the close decision.
Thereafter, Penn went on to accomplish great things within the organization, including a first-round rear-naked choke over Matt Hughes, retaining the UFC welterweight title while sticking one to Team Miletich, the original stomping grounds of both Hughes and Pulver.
Pulver later left the UFC and suffered notable knockout losses at the hands of Duane Ludwig, Jason Maxwell, Takanori Gomi and Hayato Sakurai, respectively. He would later return to the organization in September 2006, succumbing to yet another KO loss at the hands of Joe Lauzon, who needed just 47 seconds to dispatch of "Lil' Evil."
While Penn didn't finish their second encounter any faster than Lauzon, he thoroughly dominated the boxing aficionado both on the feet and on the ground, eventually cinching up a rear-naked choke in the second round, over an over-the-hill fighter in Pulver.
UFC veterans Falaniko Vitale and Robbie Lawler met one another the first time under the Superbrawl banner in July 2005, where the then-Miletich product dominated the Hawaiian, save for a close submission scare.
On the feet, Vitale proved no match for the punching power and speed of Lawler, who eventually sealed the deal moments before the end of the second round, dropping Vitale hard to the mat with vicious combinations, eventually rendering Niko unconscious.
Lawler claimed the title with the win and followed up the performance with a submission win over Jeremy Brown while Niko suffered another loss at the hands of the highly touted Jason "Mayhem" Miller.
Both Lawler and Vitale were pitted against one another for a second time in February 2006, where "Ruthess" needed even less time to put down the chinny Niko, who withstood the blunt of the blows for just 3 minutes and 38 seconds.
Jeremy Jackson got the better of a young and undeveloped Nick Diaz.
In September 2002, Jackson finished the submission specialist in just 49 seconds of their welterweight affair.
As Diaz began to progress through the ranks of the mixed martial arts world, he was eventually set to face the 29-year-old for a second time, this time exacting revenge with first-round strikes, defending his IVC 170-pound title with the win.
Both Jackson and Diaz later transitioned into the UFC shortly thereafter, where the two of them were immediately thrown back into the fray, less than two months removed from their second meeting.
Diaz continued to show his progression, defeating Jackson with a third-round armbar finish, but not before lighting up Jackson on the feet.
It wasn't bad enough that then-PRIDE prospect Wanderlei Silva defeated the legendary Kazushi Sakuraba in just 98 seconds of their 205-pound encounter, however, the promotion opted to see it twice more.
Sakuraba had no silver lining in his loss to Silva, since it was so one-sided.
So how would the submission wrestler attempt to defeat Silva by now?
Well, he didn't.
"The Axe Murderer" finished Sakuraba again twice thereafter—first on the Doctor's advice after a drubbing from the Brazilian.
In their third, and hopefully final match up, Silva knocked Sakuraba to the canvas with one punch, creating a decisive conclusion for their extremely one-sided affair.
It was a pivotal move for the UFC.
If BJ Penn could somehow dethrone then-welterweight kingpin Georges St-Pierre at UFC 94, he would become the only man to hold two titles in two different weight classes under the Zuffa umbrella.
However, BJ Penn is a natural lightweight with suspect takedown defense against the elite, while St-Pierre remains to be one of the most poised and ready wrestlers in the business.
Over the course of four rounds, St-Pierre dominated Penn on the ground, sneaking in a mounting number of shots to the head, though Penn did enough to survive.
In the end, Penn's corner stopped the fight in between the fourth and fifth round.
The bout was all held on the merit of a tough first encounter, where St-Pierre earned a very close split-decision over the Hawaiian.
Why risks two champions' legacies for the price of a super fight? Granted, it's the same scenario St-Pierre finds himself in with Anderson Silva, though at the time, Penn had only defended his title once before the prolific rematch with the Canadian.
After a second-round drubbing from heavy hitter Chuck Liddell at UFC 47, Tito Ortiz was poised again for a rematch with the UFC Hall of Famer.
Liddell needed only 38 seconds in the second stanza in order to finish the "Huntington Beach Bad Boy," who would later go on a five-fight win streak before being deemed worthy for challenging "The Iceman" again.
The stakes were higher at UFC 66, as Liddell looked to defend his light heavyweight title a fourth time against Ortiz. Leading into the bout, Ortiz had scored two consecutive knockout victories over the likes of Ken Shamrock, who at the time was 42 years old.
Liddell made it interesting in the early goings with Ortiz, who scored a takedown in the second round, though the then-champ outgunned Ortiz for a second time, finishing him off in the third round for the TKO finish.
Both Pulver and Urijah Faber engaged in, at the time, the most important featherweight fight in history.
The former UFC lightweight champion made a successful debut in the WEC against the always-tough Cub Swanson in December 2007, submitting the touted fighter in just 35 seconds.
Later, Pulver was granted the chance to fight for the belt opposite of Faber, who stood toe-to-toe with Pulver for five action-packed rounds.
Eventually, Faber earned the decision win while Pulver earned the respect of his peers, though it was short-lived.
In his next bout, Pulver was finished on strikes in just 72 seconds when "Bad Boy" Leonard Garcia throttled the former champ in their 145-pound matchup.
Pulver was then immediately thrown back in to fight Faber shortly thereafter, eventually succumbing to a first-round submission loss which took all of 94 seconds. Faber dropped Pulver to the mat with body shots before closing the show with the guillotine choke.
Heading into the bout, Pulver was 1-4 in his previous five outings and was clearly mismanaged when he took on a former world champion during this rough patch in his career.
Pulver is now 3-7 in his last 10 outings.
At UFC 45, Matt Hughes laid claim as the best in his class when he dominated one of his best challenges to date in Frank Trigg.
After a brief exchange in the clinch, courtesy of the collegiate wrestling careers, Hughes was able to secure back mount, to which Trigg decided to stand and relieve the pressure.
Hughes ultimately locked up a tight rear-naked choke whilst standing. The force of the submission made Trigg drop to the canvas and eventually tap to the submission.
Just a little over a year later, Trigg was pitted again against Hughes, who had since lost and recaptured the 170-pound belt, Renato Verissimo and Georges St-Pierre along the way.
After taking advantage of a low blow early, Trigg pounced looking for the finish.
What happened thereafter was justice, as Hughes once again reversed fortunes and scored another rear-naked choke finish over Trigg, outdoing himself with a more impressive finish than from their initial meeting.
It remains one of the strongest rivalries in the organization's history, but the trilogy between Tito Ortiz and that of Ken Shamrock was the most one-sided rivalry of any kind inside the UFC.
The two first met at UFC 40, where Ortiz demolished the Lion's Den product over the course of three rounds, leaving Shamrock's face a bloody grimace.
In the end, Shamrock eventually had about all he could take and didn't leave his stool heading into the fourth round, thus seemingly passing on the torch to "The Huntington Beach Bad Boy," or so we thought.
Both Shamrock and Ortiz served as coaches on Season 3 of The Ultimate Fighter, where towards the show's conclusion they met for a second time in July 2006. Ortiz clean clocked the 42-year-old with a significant amount of elbow strikes to the face, prompting the stoppage just 78 seconds into the bout.
While the stoppage remained questionable, so did Shamrock's ability to take such savage punishment.
In the end, the two met each other for a third and final time, where unsurprisingly Shamrock again succumbed to blows from Ortiz, who sealed the rivalry just three months after their second battle.
Heading into the rubber match, Ortiz was riding on a wave of confidence, supported by his four-fight win streak over the likes of Vitor Belfort and Forrest Griffin, to name a few. Shamrock, conversely, was on a three-fight skid, with many prompting his retirement.
A heated rivalry that damaged Shamrock's career beyond repair, where he since has not recovered from the fallout. Since his last encounter with Ortiz, Shamrock has gone 2-3 in his last five fights, with those three losses coming by form of knockout.