#4 Nick Diaz at UFC 137
Nick Diaz never ceased to entertain during his time in the UFC, which is all set to recommence later this year against Robbie Lawler. The elder Diaz brother had a memorable moment with Joe Rogan in the aftermath of UFC 137, where he recorded a win over B.J. Penn.
Diaz first called out UFC welterweight champion Georges St-Pierre, whom he was initially supposed to face before being withdrawn due to missed media obligations. He then gave Rogan's podcast a shout-out, causing the 53-year-old to label it "the highlight of his month".
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#3 Randy Couture at UFC 68
Randy Couture's historic performance at UFC 68 was only topped by the poignancy of his post-fight interview with Joe Rogan. At 43 years of age, 'The Natural' dominated Tim Sylvia over the course of five rounds to claim a unanimous decision win.
Rogan echoed the sentiments of the vast majority of the MMA community, praising Couture's display of takedowns and top control. He was rendered speechless, resulting in one of the best one-liners in UFC history from the newly crowned champ.
"I've always been impressed by you, but I'm blown away. I have nothing to say. Please talk," said Rogan.
"Not bad for an old man, huh?" Couture replied.