Doo Ho Choi

Doo Ho Choi, the 'Korean Superboy,' arrived in the UFC as one of the most hyped knockout prospects in the featherweight division. He blasted through his early competition with crisp, powerful boxing, building real buzz around his finishing ability.

His legacy, though, was sealed in a fight he didn't win. His 2016 war with Cub Swanson is remembered as one of the greatest fights in MMA history - a relentless, back-and-forth striking battle that earned both men enormous respect. Unfortunately, injuries and a mandatory military service commitment stalled his momentum afterward, and he eventually announced his retirement with a record around 17-4-1.

For newcomers, Choi is proof that a fighter can become beloved through sheer willingness to trade. Go watch the Swanson fight - it's one of the best advertisements for the sport ever made, and it's why fans still hold Choi in such high regard.