Getty/GOALGill ClarkExplained: Why Arsenal have been forced to wear their away kit for north London derby clash with TottenhamTottenham vs ArsenalArsenalTottenhamPremier LeagueArsenal take on Tottenham on Sunday in the north London derby and have been forced to wear their away kit for the fixture.Article continues belowArticle continues belowArticle continues belowArticle continues belowTottenham hosting Arsenal in Premier LeagueBoth teams usually wear traditional colours for gameBut Gunners forced to change this season