Over the past five years, the business of sport has become a £20bn-a-year industry in the UK, supporting some 450,000 jobs. But it has not always been that way.
Only 30 years ago, business and sport were rarely mentioned in the same breath. Football was beset by crowd trouble, old stadiums and a lack of external funding. The Olympic Games had suffered major boycotts, in 1980 and 1984, and potential bidding cities were deterred by the vast losses and legacy issues of previous hosts.