Knowledge bank: The Workshop of Sports History is a Danish experimental centre. The task is to collect, study, reintroduce, and revitalise traditional games from the European area.

Knowledge bank: Technology serves many functions in sport. It has a constituent function. Without ball and bats, there is no baseball. Without the bike, bicycling races are impossible.

Knowledge bank: In sanskrit the word 'maya' at one and the same time means 'play', 'magic' and 'to discover (or create) the world'.

Player agents from Proactive, an international firm of agents, can negotiate with each other and represent both parties in a negotiation situation. If left to the Fedration Internationale de Football Association (FIFA), at any rate.

More than 150 professional footballers are likely to be playing under the influence of performance-enhancing drugs, according to a study carried out by the BBC.

One of Europe's largest football management agencies, Proactive, has created a network of players, coaches and agents buying and selling players from each other.

World football chief Sepp Blatter receives a secret annual payment of around GBP250,000 a year on top of his generous salary and perks. And Sportsmail can reveal that documentation has come to light indicating that the FIFA president has received the huge undisclosed payment since 1997.

The rape culture of the hockey locker room is on trial in Canada. Police suspects that one coach in particular is responsible for somewhere between 20 and 100 assaults on young hockey players, reports Laura Robinson.