![Mike Tyson weighed 14st as 13-year-old and viciously KO'd 17-year-old opponent in very first fight sparking brawl Mike Tyson weighed 14st as 13-year-old and viciously KO'd 17-year-old opponent in very first fight sparking brawl](https://www.thesun.co.uk/wp-content/uploads/2020/06/Mike-Tyson-Teenager.jpg)
Mike Tyson weighed 14st as 13-year-old and viciously KO'd 17-year-old opponent in very first fight sparking brawl
Andscape on Twitter: "35 years ago today, Mike Tyson made his professional debut. At 18-years-old, Tyson knocked out Hector Mercedes in just one round. https://t.co/PrWU2Xbtmg" / Twitter
![Mike Tyson reveals dramatic two-year body transformation to become ripped machine at 53 with fans in shock of 'specimen' Mike Tyson reveals dramatic two-year body transformation to become ripped machine at 53 with fans in shock of 'specimen'](https://www.thesun.co.uk/wp-content/uploads/2020/05/SPORT-PREVIEW-tyson-9.jpg)
Mike Tyson reveals dramatic two-year body transformation to become ripped machine at 53 with fans in shock of 'specimen'
![Mike Tyson knocked out grown men in sparring fights aged 12 and weighed 13st 5lbs of pure muscle with 20 INCH neck Mike Tyson knocked out grown men in sparring fights aged 12 and weighed 13st 5lbs of pure muscle with 20 INCH neck](https://www.thesun.co.uk/wp-content/uploads/2019/10/NINTCHDBPICT000502149546.jpg?strip=all&w=635)
Mike Tyson knocked out grown men in sparring fights aged 12 and weighed 13st 5lbs of pure muscle with 20 INCH neck
![On This Day in 1985: 18-year-old Mike Tyson Knocked Out Opponent to Win His First Professional Boxing Fight On This Day in 1985: 18-year-old Mike Tyson Knocked Out Opponent to Win His First Professional Boxing Fight](https://images.news18.com/ibnlive/uploads/2021/12/mike-tyson.jpg)
On This Day in 1985: 18-year-old Mike Tyson Knocked Out Opponent to Win His First Professional Boxing Fight
![Mike Tyson knocked out grown men in sparring fights aged 12 and weighed 13st 5lbs of pure muscle with 20 INCH neck Mike Tyson knocked out grown men in sparring fights aged 12 and weighed 13st 5lbs of pure muscle with 20 INCH neck](https://www.thesun.co.uk/wp-content/uploads/2019/10/NINTCHDBPICT000001472163.jpg)
Mike Tyson knocked out grown men in sparring fights aged 12 and weighed 13st 5lbs of pure muscle with 20 INCH neck
![Mike Tyson: I Made Hangover Movie for Drugs | News, Scores, Highlights, Stats, and Rumors | Bleacher Report Mike Tyson: I Made Hangover Movie for Drugs | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://cdn.bleacherreport.net/images_root/slides/photos/000/332/788/original_original.png?1281120176)
Mike Tyson: I Made Hangover Movie for Drugs | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
![12-Year-Old Mike Tyson Was Knocking Out Grown Men - Look Back At His Amateur Fights And Rise To Heavyweight Champ - BroBible 12-Year-Old Mike Tyson Was Knocking Out Grown Men - Look Back At His Amateur Fights And Rise To Heavyweight Champ - BroBible](https://brobible.com/wp-content/uploads/2019/12/gettyimages-576837850.jpg)