A match between local rivals. North London derby (Arsenal vs Tottenham), Manchester derby (City vs United), Merseyside derby (Liverpool vs Everton). Form goes out the window in a derby. The worst team in the league can beat the best if it's a derby. Players who score in derbies become legends. Players who get sent off in derbies also become legends, just a different kind.
"Derby day. The atmosphere's been building all week. This one means more than three points."