Mike Tyson's invincible streak at the start of his professional career drew some frightening KOs - just ask Conroy Nelson.
The heavyweight legend came into the sport with a fearsome reputation, turning professional in 1985 with the world at his feet after a stellar amateur career.
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Tyson, a ferocious and explosive puncher, was generating highlight-reel KOs and huge interest from the boxing world, and his streak continued positively at the start of his career.
He kept to levels of activity rarely seen in his era, putting together a 12-fight win streak by November - eight months after his debut.
'Iron Mike' knocked out Eddie Richardson on a fight on November 11 in just one round, and was clearly not satisfied with the experience he gained.
The American agreed to a fight just nine days afterwards to take on journeyman Nelson as he continued to build his growing resume.
Tyson stepped out in front of a packed crowd in the intimate arena, and looked to extend his 100 per cent KO ratio.
Nelson seemed to be on borrowed time from the opening bell and Tyson burst out the traps.
He was the aggressor throughout the opening rounds, taking centre ring and letting his hands go early on with clearly no interest in building rounds for experience.
But it was in the second period where the breakthrough came, as he started to walk his rival down relentlessly and his resolve began to crumble.
As he retreated, it was Tyson who landed the killer shot - a booming left hook which smashed through Nelson's guard.
It sent him quickly crashing to the canvas, with witnesses of the fight describing blood pouring from a broken nose injury.
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The thunderous shot left Nelson in a world of pain, and he was unable to beat the ten count as the referee waved off the contest while he clambered to his feet.
It was a stunning moment that Nelson had simply been unable to meet with any resistance, and Tyson moved to 13-0.
When speaking after the fight, Nelson said: "When I fought Mike Tyson, it was on a week's notice.
"We set up training camp in a car garage, set up a couple heavy bags. I wasn't totally ready to fight, but the money was there.
"At the time, I said to myself, 'I'll go in there and box him. He's a shorter guy.' Usually my jab is pretty good, but the way that he avoided the jab ruined the plan I had for him.
"He set the pace for himself. He ducked underneath it and came up with a body shot, a left hook. Then it was bam, bam, bam!
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"I was on the ropes, and he broke my nose. The referee came over and my eyes were watering. I wanted to continue, but I couldn't see."
That was the 13th of Tyson's 18 professional fights within 12 months of him turning professional.
He build up stardom as he rose through the heavyweight rankings, and after recording 27 victories with just one by decision, he was ready for the big time.
Tyson completed his trip to the pinnacle of the division becoming the youngest ever heavyweight world champion with a stunning victory over Trevor Berbick the following year.
The heavyweight legend went on to fight to an undefeated streak of invincibility like no other, becoming America and the sport's latest heavyweight star.
He was eventually beaten in 1990 in a stunning upset by James 'Buster' Douglas, but had already cemented his name in the record books.
Mike Tyson's final KO vs Carl Williams with aura of invincibility before Buster Douglas defeat
Tyson went on to fight in some huge money-spinning events against the likes of Lennox Lewis, Evander Holyfield and Larry Holmes before concluding his professional career in 2005.
He is ranked as one of the greatest boxers of all-time, and is a huge fan favourite with his style rarely replicated.
Recently, Tyson's profile has seen opportunities to return arise, and he made an exhibition comeback against Roy Jones Jr in 2020.
Sadly, the boxing icon's resume was also stained in a full professional outing against YouTuber-turned-boxer Jake Paul in their November clash where he was beaten.
But he was able to generate $20million and wasn't badly hurt, with the veteran now able to retire financially comfortable.
