一門別総当り
いちもんべつそうあたり
obsolete rule prohibiting match-ups between wrestlers from the same group of stables
一別 is read as いちべつ (ichibetsu) and means parting.
いちべつ
ichibetsu
いちもんべつそうあたり
obsolete rule prohibiting match-ups between wrestlers from the same group of stables