So millions of us stayed up to listen or watch the big event in Las Vegas last night: ‘Money’ Mayweather v the Irish fella, who if the rules of pugilism weren’t being followed would probably rip you limb from limb in the time it takes to say “that’s a nice tattoo”. The build up to this money spinner that looks likely to surpass the $600m earner of Mayweather v Pacqiao in 2015 seems to have been...