When sport gets complicated, which it tends to do these days, it's time to call on the specialists, such as sports law lawyers. But just what is sports law, what are the rules of the game, what sort of cases crop up, and what do the lawyers need in terms of resources. Lereesa Easterbrook and Said Sufi of Bird & Bird give us a fascinating – and in this Olympic year timely – insight into this burgeoning legal field.