There will be lots of running commentary (see Chapter 7). This is particularly the preserve of the radio presenter. Do your homework. The obvious facts are top of the list: names and profiles of players, teams, standings in league tables or competitions, attendances, prize money, world rankings and so on. You need a basic understanding of the rules and governing bodies of the sport. If there are areas you don’t know, get the answer quickly, don’t try to bury the issue. Often the listeners will be able to help out with e-mails and texts. You only have to ask!