A bit like handing him the belts to hold, this seems like another mistake. Maybe Joshua thinks that some of the pressure is relieved by fighting away from home. He has a fight to win, an uphill struggle. He doesn't need the money but a huge event in the UK with his fans creating a cauldron of noise is an advantage, however slight, and certainly will not help Ruiz. Home Timezone, familiar surroundings and routines will all help lessen distractions because he will have to change enough as it is, for it not to be a rerun of the first disaster.