Rangers - and manager Warnock in particular - were incensed by the absence of an offside flag but replays suggested it had just about been the correct decision by the referee's assistant to allow play to continue.
Emirates has also thrived by entering markets in the rest of the Middle East, Africa, South-East Asia, India and Latin America that had hitherto been poorly connected to the global air-transport network because of over-regulation, the absence of a strong local flag carrier and the indifference of established airlines.