#7 Ken Shamrock

This was somewhat of a strange feud given Shamrock’s status not only as a UFC pioneer, but one of the men who managed to change the company’s fortunes around in the early 2000s when they were initially struggling under the helm of Zuffa.
Things took a wrong turn in 2007; Shamrock was under contract with the UFC dating back to his fights with Tito Ortiz in 2006, but when he apparently retired following his third loss to Ortiz in October that year, the UFC took this at face value. And when ‘The World’s Most Dangerous Man’ decided he wanted to return in 2007, the UFC refused to book him for a fight.
Get the latest updates on One Championship Rankings at Sportskeeda and more
Shamrock decided to hit the UFC with a lawsuit, but his bid to hit the UFC in the purse failed in court and he was ordered to pay the UFC’s legal costs – somewhere around $175,000. The UFC didn’t chase Shamrock for that money, but in 2013 – when Ken decided to go on a Twitter rant against the promotion – Dana White changed his tune, stating “I’m coming for the money, you piece of sh*t”.
A year later though, White had a change of heart and decided to call Shamrock to smooth things over. Ken was responsive and had a heart-to-heart with the UFC President, and eventually, the beef was squashed – ending another fighter vs. promoter feud.