This Day in MMA History: McGregor scores KO in his UFC debut

7 years ago today, the biggest star in MMA history made his UFC debut

For today’s look back into MMA history we are focusing on the UFC debut of one Conor Anthony McGregor. It was seven years ago today when McGregor, fighting on the Facebook prelims (remember those?) on the UFC on Fuel TV 9 card.

April 6, 2013: Conor McGregor knocks out Marcus Brimage and owns the post-fight press conference

Heading into his first bout under the UFC banner...