If you follow kickboxing you should know the name Andy Hug by now. If you aren't overly familiar with him or his body of work, you'll at least know the name from being tossed around by fans. There is a reason why the name Andy Hug lives on over ten years after his death; he was an incredible fighter who made a deep impression on every fan who has ever seen him fight.
HDnet's Michael Schiavello takes a look at Andy Hug's life and death in another great article on the HDnet website.
His third kickboxing fight was against Croatian legend Branko Cikatic at a time when Cikatic was at the height of his powers as K-1 world champion. In the end there was blood all over the canvas: Hug’s nose was broken and Cikatic’s face a bloodied mess. Hug’s hand was raised in victory and a new era in the sport was born.
Hug’s lack of boxing skills (full contact Karate competition does not permit punches to the head, so Karate exponents traditionally lack competent boxing skills) and ring savvy saw him dropped three times in the opening twenty seconds of his K-1 elimination fight against USA’s Patrick Smith in early 1994. Though Hug was never in serious trouble and jumped to his feet after each down, the referee stopped the fight on the three knockdown rule.
Hug swore revenge.
He enlisted the services of boxing trainer Uwe Ulman and on September 18 1994 claimed his revenge with a savage knee knockout to Smith’s head that stopped the American midway through the opening round.
Do yourself a favor if you don't know Andy Hug, read the rest of Schiavello's article, and go to YouTube and type in "Andy Hug." [source]