Matchday 12 of the MLS season is in the books, and now? It's MLS Rivalry Week. There's a midweek slate of games, but then it's Matchday 14 - and some of the most anticipated games of the regular season.
These aren't just normal matches. They're games fueled by genuine distaste - or worse - for one another, contests in which physicality takes center-stage on the pitch, temperatures rise and tempers flare.
Throughout MLS' history, there's been fierce rivalries, highlighted by tense affairs. There are many factors that define a proper rivalry. There's history, iconic moments, geographical borders, sporting conflicts across different leagues, and most importantly, fanbases.
From El Trafico in Los Angeles to Canadian Classique, GOAL takes a look at the league's best.