He was the shadowy Cartel lieutenant who was rumoured to be out to get UFC star Conor McGregor after a pub brawl at the height of the Kinahan and Hutch feud.

But convicted drug dealer Graham ‘The Wig’ Whelan was this week welcomed into McGregor’s pub and into this family when he was introduced as the new partner of the sports stars sister Aoife.

Nicola Tallant talks to Niall Donald about Conor McGregor and the mob and the childhood friendships which link the world famous fighter with some of the most prominent gangland figures in Ireland.

Crime World, with Nicola Tallant, is a weekly Iri…