▁was ▁re leg ated ▁to ▁the ▁second ▁tier ▁again . ▁In ▁ 2 0 0 3 ▁the ▁formerly ▁separate ▁O mi ya ▁and ▁U raw a ▁cities ▁merged ▁to ▁become ▁S ait ama ▁city , ▁and ▁since ▁ 2 0 0 5 ▁the ▁der by ▁became ▁a ▁top ▁flight ▁fi xture ▁after ▁O mi ya ▁was ▁promoted . ▁ ▁During ▁the ▁JS L ▁years ▁and ▁into ▁the ▁ 1 9 9 0 s , ▁U raw a ' s ▁main ▁top ▁flight ▁riv als ▁were ▁J EF ▁United ▁I chi h ara ▁Ch iba ▁and ▁K ashi wa ▁Re ys ol , ▁both ▁now ▁based ▁in ▁Ch iba ▁Pref ect ure . ▁Because ▁of ▁their ▁former ▁parent ▁companies ' ▁headquarters ▁being ▁all ▁based ▁in ▁Mar un ouch i , ▁Tokyo , ▁the ▁three ▁clubs ▁were ▁known ▁as ▁ 丸 の 内 御 三 家 ▁Mar un ouch i ▁G os an ke ▁(" Mar un ouch i ▁Big ▁Three ") ▁and ▁fi xt ures ▁between ▁them ▁were ▁known ▁as ▁Mar un ouch i ▁der b ies , ▁although ▁the ▁term ▁is ▁falling ▁out ▁of ▁use ▁as ▁they ▁are ▁now ▁based ▁in ▁different ▁pre fect ures ▁and ▁rarely ▁play ▁home ▁games ▁in ▁Tokyo ▁stad iums . ▁ ▁Riv als ▁further ▁af ield ▁include ▁K ash ima ▁Ant lers , ▁FC ▁Tokyo , ▁Y ok oh ama ▁Mar inos , ▁K aw as aki ▁Front ale , ▁and , ▁even ▁farther ▁away , ▁G amba ▁Os aka . ▁Old ▁JS L ▁championship ▁rival ries ▁with