  Ronald Dworkin’s interpretivist theory of law holds that law must be interpreted in accordance with principles (e.g. justice) without which legal practice would not make sense. Interpretivism heavily influenced Simon’s formulation of broad internalism. This is perhaps unsurprising as several broad internalists consider sport to constitute a type of legal system with its own jurisprudence (e.g. Russell. 2015). On Simon’s view, sport is interpreted by appealing to intrinsic principles, separate to rules and conventions, that define the logic of the practice. Justice and competitive excellence are examples of such principles. Without them, Simon’s argument continues, the sporting practice would not make sense. Drawing on different understandings of the intrinsic principles that underlie sport, three broad internalist approaches have been formulated: contractualism, the ‘respect for the integrity of the game’ account, and mutualism.