#5 Jeff Joslin
Unlike a couple of fighters on this list, Canada’s Jeff Joslin was definitely good enough for the UFC. In a parallel universe in fact, ‘The Inferno’ probably would’ve become a title contender in the most loaded division in the promotion – Welterweight – but instead, his UFC career ended after a single fight due to horrendous luck with injuries.
A fully rounded and dangerous fighter, Joslin had skills in all areas. He’d grown up as the son of a national karate champion and had a sharp striking game, but he was equally gifted on the mat, holding a black belt in Brazilian Jiu-Jitsu and medalling in the 2002 BJJ Pan-Am games. He’d even largely beaten future UFC title challenger Jon Fitch on the regional circuit, only losing due to a horrendous judging decision.
By late 2006, ‘The Inferno’ was 5-2 in MMA and was signed by the UFC. In a sign of where they saw him in the division, he was matched against rising star Josh Koscheck in the semi-main event of UFC Fight Night 7. Koscheck would use his wrestling game to smother Joslin for a decision in the fight, but the Canadian fought well, and to most observers, it was clear that he had a bright future ahead of him.
Unfortunately, disaster struck; Joslin was forced out of his next two booked fights, against Kuniyoshi Hironaka at UFC Fight Night 9 and again against Chris Lytle at UFC 73, due to what turned out to be post-concussion syndrome. The issue eventually forced ‘The Inferno’ to retire from MMA – and so a potential contender in the UFC became a fighter who was one-and-done in the promotion.