EDITOR'S NOTE: With Seattle Sounders FC and the Portland Timbers set to square off in another Cascadia Cup rivalry match this weekend. it seems a good time to revisit this 2016 piece from Prof. William Lang on the roots of the rivalry -- not just between clubs, but between the cities and states they call home.
A lot has changed since then -- Seattle winning their first MLS Cup last December being the best example -- but the history hasn't.
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Many argue it’s the best soccer rivalry in MLS today: Timbers vs.