Sport is a major area of human endeavour and commercial activity. Sport law covers a broad field of legal issues which govern and impact upon athletes, sporting organisations and their commercial partners. It is impossible to detail all legal areas relevant to sport, but some are commercial contracts, intellectual property, digital rights, risk management, established tort principles, administrative law and criminal law. Relevant regulation includes the rules and norms of the game, statutes and regulations of sports clubs and organisations, regulatory agencies and international laws, rules and conventions. International agreements, for example, cover many aspects of anti-doping and the International organisation the Court of Arbitration for Sport, while individuals and organisations may be bound to these by the contracts they have signed.