ESPN

Body Issue 2016: Conor McGregor Behind the Scenes

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Conor McGregor

Photograph By Mark Seliger for ESPN

MMA fighter Conor McGregor is not afraid about offering his opinions -- or sparring in the nude. "I tell you what, them Irish genes are good. They've served me well. We are made tough. We are made of steel. So I have no doubt the blood in my genes, the Irish blood in me, has definitely stood me."