This Practice Note provides practical guidance for solicitors advising clients in the sports sector on the IP disputes that commonly arise and on how best to manage them.For guidance on identifying, protecting, managing and exploiting IP rights in the sports sector, see Practice Note: Sports—IP protection and management.How might IP disputes arise in the sports sector?Intangible assets are the lifeblood of the sports sector. For a long time, revenues have been driven predominantly through the exploitation of IP rights. Any action which impacts or reduces the value of these rights therefore regularly results in a dispute.The main categories of dispute are as follows:•infringement of IP rights, commonly including trade marks used on kit and merchandise, design rights in equipment and apparel, copyright in broadcasts and marketing content, database rights in sporting data, and patents covering equipment technology•challenges to the subsistence, registrability or validity of IP rights, particularly where a sports brand or governing body seeks to register unconventional marks, logos or emblems•counterfeiting of kit, merchandise and match