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FOX NEWS - It looks like MMA fighter Conor McGregor is already ready to come out of retirement.
The former UFC featherweight and lightweight champion threw shade at Hollywood actor Mark Wahlberg on Saturday while inviting him to a battle over his stake in the fight promoting company.
"I’ve decided to challenge Hollywood actress Mark Walhberg next. A fight for all the shares!" McGregor tweeted, earning more than 8,300 retweets and 73,000 likes as of Monday afternoon.