Is Conor McGregor's return a rebirth… or death of a salesman?

Plenty has changed even since the Dubliner was most recently in the desert, a chastening night 15 months back when he was sent scurrying across the sands by Khabib Nurmagomedov, writes Joe Callaghan.

No place to run the risk of dehydration, Las Vegas likes to keep you well oiled from the get go.

Behind the glass window of one of the liquor stores in McCarran Airport’s arrivals area, Conor McGregor smiles and stares out at the newcomers. A cardboard version of course, with a box of Proper 12 whiskey under one arm and the other cradling a bottle of the stuff.