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#5 BJ Penn
A fighter with an incredible history behind him, there is a tendency to call BJ Penn overrated. A fighter who was known for fighting out of his weight-division, there is a reason that he is often referred to as the best fighter to have ever walked into the Octagon.
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With an unnatural knack for winning fights outside his natural weight class, BJ Penn has always been a divisive topic, not the least for his 16-9-2 career record.
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Given the fact that the man is even now considering a comeback, something has to be said about his ability to fight. He was 2nd-ever fighter to be a multi-divisional Champion in the UFC, with wins against Matt Hughes for the Welterweight Title and win against Joe Stevenson for the Lightweight Title handing him this particular distinction.
With incredible feuds against the likes of Matt Hughes in his career, BJ Penn is a fighter who can never be overlooked when ranking the best UFC fighters ever.
