As has been previously described on the PSP, the friendly has historically been an important opportunity for the transmission of new football tactics. It's also a great way for clubs and federations to make some money and for hitherto unknown players to be seen by top clubs. From the fan's perspective, the friendly is often a rare opportunity to see top flight international soccer and also serves as an important community builder, whether those communities are ethnic groups that identify with particular international clubs or the soccer community as a whole.