Barry Hearn - Sporting Events Promoter

Professional sport is a money-earning business and the best athletes in the most popular sports earn huge salaries. But even athletes struggle to compete with the promoters and agents who behind the scenes wield enormous power. Stephen Sackur speaks to veteran promoter Barry Hearn, who made his name in snooker and boxing and built a business worth hundreds of millions of dollars. Have money and greed devalued sport?