What are your nation's sport rivalries?
In Tryienne, there are a couple.
Roma Sentinels vs Pogo Streeters; Basketball.
This old rivalry goes back to the early days of Basketball in Tryienne, when the league was just formed. The Roma Sentinels is the team for the richer persons of Roma Major, and the Pogo Streeters is the team for the working class of Roma Major.
Mithras Packers vs Tryienne East Falcons; American Football.
This rivalry also goes back from when the leagues just formed.