Conor McGregor says he's retiring from MMA

(FOX NEWS) - MMA fighter Conor McGregor announced he was retiring from the sport in a tweet late Monday night.

"I've decided to retire from the sport formally known as "Mixed Martial Art" today," McGregor said. "I wish all my old colleagues well going forward in competition. I now join my former partners on this venture, already in retirement. Proper Pina Coladas on me fellas!"

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