Declan Hill, in his seminal 2008 book on match-fixing, The Fix, quoted “a recent study for the American journal Foreign Policy [that] estimated the entire Asian gambling industry, both legal and illegal, at $450bn a year.” That’s perhaps 20 times the revenues of all of European professional football. When the sums bet on games dwarf the players’ wages, it’s no wonder match-fixing has become a global, stable and mature industry.