#6 Jon Fitch

A title contender at Welterweight for the best part of a decade in the UFC, Jon Fitch never truly became a fan favourite due to what was perceived as a dull fighting style. He never warmed himself to the UFC brass, either – and ended up having numerous feuds with the promotion over the years.
The first came way back in 2008. Fitch – who had just unsuccessfully challenged Georges St-Pierre for the Welterweight crown – decided to refuse to give the UFC lifetime rights to his likeness for their upcoming video game, as well as other merchandising opportunities, and ended up being cut from the roster, along with teammate Christian Wellisch.
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To Fitch, the UFC’s demand to use his likeness in perpetuity was a step too far, as he felt that Dana White’s approach to the whole issue was overly aggressive. A day later though – and after a meeting with then-head honcho Lorenzo Fertitta – Fitch was back in the fold.
The relationship was never quite the same, however, and in 2013, when Fitch lost two fights in a row to Johny Hendricks and Demian Maia, he was released from his contract in somewhat of a surprise move. Dana White claimed he was “on the downside” of his career, but did state that he didn’t have a personal problem with the Welterweight.
That might be a little different now. In the years since, Fitch has become heavily involved with the class action lawsuit filed against the UFC accusing them of violating the Sherman Antitrust Act – a lawsuit that is ongoing at the time of writing, meaning this feud between fighter and promoter is ongoing, too.