Being born-and-raised in MA now living in Southie, and in spite of Southie being gentrified a great deal as of late, I <i>still</i> would make sure any of my friends from outside of the city don&#x27;t wear Yankees gear or say anything bad about the Sox. Or Lakers, or Canadiens - it&#x27;s also fascinating that the biggest sports rivalries in the major sports in the US all seem to stem out from Boston as a whole.<p>And yet, as crazy as these rivalries seem, it pales in comparison to soccer rivalries like Arsenal&#x2F;Manchester United, Real Madrid&#x2F;Barcelona, or AC Milan&#x2F;Inter Milan. People are <i>dying</i> at these games.