Since this is a common question, I've taken the trouble to get it all down in writing for you. To answer your question, we really have to understand how Digital operates. Visualize a whole series of playing fields spread out on a vast plain, stretching out to the horizon in all directions. On each field, there are several teams, of different sizes and types, but there are only about a dozen different coloured uniforms, and teams of each colour seem to have a bond with each other that spans the many playing fields.
Some fields are large, and have all the colours represented, smaller ones have only a few.
There is one called SPR that is unique in having all the colours, yet is only a very small field, and is so crowded the players can hardly move. On each field the teams jostle and push each other around, sometimes they kick a ball around, other times they throw rocks at each other, and for long periods will huddle in small groups mumbling in low voices so the other teams can't hear. At random intervals, some members of a team will gather on the sideline and yell insults at members of the same coloured team in a neighbouring field. We do not yet understand why they do this, but both parties seem to find it most enjoyable. No-one has ever figured out the rules that apply to these games on the playing fields, although it is fairly certain that the players themselves do know.