From ESPN http://sports.espn.go.com/espn/page2/story?page=caple/070625
11. Premier League Soccer game (fall-spring, England). Imagine what Yankees or Red Sox fans would be like if there weren't football, basketball and hockey teams to distract them. That might give you some idea of how passionately the English take their soccer, but to really understand it, attend a Chelsea-Arsenal match. Just be sure to wear your Kevlar replica jerseys. (Or, if you really want a taste of bitter rivalry, go up to the Scottish Premier League for a Rangers-Celtic clash.)