' s ▁brother - in - law ▁and ▁captain ▁of ▁the ▁Republic ▁team , ▁Johnny ▁G iles , ▁and ▁D erek ▁Doug an ▁of ▁Northern ▁Ireland ▁were ▁friendly ▁with ▁each ▁other . ▁They ▁supported ▁the ▁project ▁and ▁persu aded ▁many ▁of ▁their ▁respective ▁team m ates ▁to ▁particip ate . ▁ ▁The ▁Irish ▁Football ▁Association ▁( I FA ) ▁was ▁opposed ▁to ▁the ▁match , ▁seeing ▁it ▁as ▁setting ▁a ▁preced ent ▁which ▁might ▁encou rage ▁moves ▁for ▁the ▁I FA ▁to ▁merge ▁with ▁the ▁FA I . ▁Further , ▁the ▁Republic ▁of ▁Ireland ▁manager , ▁Li am ▁Tu oh y , ▁who ▁also ▁managed ▁this ▁team , ▁subsequently ▁dis closed ▁that ▁the ▁FA I ▁also ▁had ▁res erv ations . ▁In ▁de ference ▁to ▁these ▁concerns , ▁the ▁" I reland ▁XI " ▁had ▁to ▁be ▁called ▁a ▁" Sh am rock ▁Ro vers " ▁selection , ▁after ▁the ▁leading ▁League ▁of ▁Ireland ▁club ▁connected ▁to ▁the ▁Kil co y ne ▁family . ▁( In ▁actual ity , ▁all ▁the ▁team ▁played ▁in ▁the ▁English ▁League .) ▁Also , ▁only ▁the ▁Brazil ian ▁national ▁anth em ▁and ▁flag ▁were ▁s ung ▁and ▁displayed , ▁although ▁A ▁Nation ▁Once ▁Again ▁was ▁among ▁the ▁t unes ▁in ▁the ▁pre - match ▁entertain ment . ▁ ▁D erek ▁Doug an ▁alleg ed ▁that ▁I FA ▁President ▁Harry ▁Cav an ▁instruct ed ▁Northern ▁Ireland ▁manager ▁Terry ▁Ne ill ▁not ▁to ▁pick ▁him ▁in ▁future ▁because ▁of ▁his ▁invol vement ▁in ▁organ ising ▁this ▁match , ▁thereby