In that euphoric moment when a fighter who, seconds before, had been virtually out cold, rallies to win a significant bout, no one is thinking of concussions or traumatic brain injuries or Chronic Traumatic Encephalopathy (CTE) or subdural hematomas or death.

They're too busy cheering the stunning turnaround, hailing a fighter who was victorious against almost invincible odds.

There have been many such miraculous comebacks in the UFC, one of the reasons we've fallen so deeply in love with the sport. Cheick Kongo scored a win out of nowhere over Pat Barry in a fight in Pittsburgh's Consol Energy Center which he was seconds away from losing by knockout.

Frankie Edgar rallied to retain his lightweight title after being dropped multiple times and on the verge of going out against Gray Maynard at UFC 125. Tim Boetsch was battered and beaten and hopelessly out of the fight when he came out of nowhere to defeat Yushin Okami at UFC 144.

There have been no deaths in the cage in the UFC's 20-year history, and, as best as is known, none of its fighters have suffered traumatic brain injuries.

This is due in large part to safety procedures set in place before a card begins. Fighters are thoroughly checked medically before they're cleared to fight.

Doctors, paramedics and ambulances are on hand at every arena to treat fighters in distress.

UFC fighters are among the greatest sportsmen in the world, as Lyoto Machida showed on Saturday when he failed to take advantage of an out-cold Mark Munoz in the main event of a card in Manchester, England. Machida knocked Munoz down with a kick to the head, and got to the prone Munoz before the referee.

The rules allowed Machida to try to punch the downed Munoz -- What ex-heavyweight champion Randy Couture called the sport's "rules of engagement" after a loss to Brock Lesnar at UFC 92 -- but Machida recognized Munoz was out and defenseless and never threw another punch.

The referee then quickly stopped the fight. By declining to throw that extra punch or two before the referee intervened, Machida may have saved Munoz a serious brain injury.

Brian Stann did the same thing in a fight last year with Alessio Sakara. Their restraint, and that of numerous other fighters who have reacted similarly when they realize the opponent is helpless, has been another factor why there haven't been any deaths or traumatic brain injuries.

Much of the credit for the UFC's terrific safety record, though, should be given to the referees, who very literally have the fighters' lives in their hands, and repeatedly show good judgment.

But once in a while, a fight goes on too long and a debate is stirred. It's happened in the last two UFC shows. Many were critical of referee Herb Dean for not stopping the heavyweight title fight between Cain Velasquez and Junior dos Santos at UFC 166 in Houston earlier.

Velasquez was pummeling dos Santos from the bout's opening seconds, and by the end of the third round, there were calls for Dean to stop the bout. But Dean let dos Santos continue until the fifth, when dos Santos went down and Velasquez delivered a series of unanswered blows from the top.

On Saturday in Manchester, Jessica Andrade routed Rosi Sexton in a fight that referee Neal Hall let go the three full rounds. Many thought it should have been stopped, including UFC television analyst Joe Rogan. Sexton, though, took a shot at what she felt was Rogan's over-the-top commentary.

48 hours post fight - I have 2 black eyes, otherwise I'm 100% fine. You could have given me an IQ test as I stepped out of the cage, and I'd still have scored higher than Joe Rogan.

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