Forget Gatorade, Conor McGregor's road back to the UFC Octagon is apparently being fueled -- at least in part -- by beer!!
Check out footage TMZ Sports has obtained from the MMA star's sister's wedding earlier this month -- the 36-year-old nearly downed a whole pint of suds in a matter of seconds at Erin McGregor and Terry Kavanagh's ceremony out in Ireland.
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Conor, of course, is currently trying to work his way back to the UFC following a three-year hiatus .