▁debut ▁for ▁C elt ic ▁came ▁on ▁ 3 ▁September ▁ 1 9 5 5 ▁in ▁a ▁Scottish ▁League ▁Cup ▁tie ▁against ▁F alk irk ▁and ▁this ▁first ▁season ▁would ▁end ▁with ▁a ▁ma iden ▁Senior ▁final ▁appearance , ▁C elt ic ▁losing ▁ 3 – 1 ▁to ▁He arts ▁in ▁the ▁Scottish ▁Cup . ▁It ▁was ▁in ▁the ▁League ▁Cup ▁however ▁that ▁Be att ie ▁would ▁enjoy ▁his ▁greatest ▁success . ▁Vict ory ▁over ▁Part ick ▁Th ist le ▁after ▁a ▁re play ▁in ▁the ▁ 1 9 5 6 ▁Scottish ▁League ▁Cup ▁Final ▁earned ▁him ▁his ▁first ▁w inners ▁medal . ▁The ▁following ▁season ▁saw ▁a ▁career ▁highlight ▁as ▁C elt ic ▁defeated ▁city ▁riv als ▁R angers , ▁ 7 – 1 ▁in ▁the ▁ 1 9 5 7 ▁Scottish ▁League ▁Cup ▁Final . ▁ ▁In ▁August ▁ 1 9 5 9 , ▁Be att ie ▁moved ▁to ▁England , ▁joining ▁Port sm outh ▁of ▁the ▁Football ▁League ▁Second ▁Division . ▁A ▁fan ▁of ▁horse - rac ing , ▁he ▁often ▁wore ▁a ▁j ockey ' s ▁cap . ▁Pom pe y ▁were ▁re leg ated ▁at ▁the ▁end ▁of ▁the ▁ 1 9 6 0 – 6 1 ▁season ▁while ▁in ▁that ▁year ' s ▁FA ▁Cup , ▁Be att ie ▁was ▁involved ▁in ▁a ▁controvers ial ▁incident ▁when ▁a ▁bad ▁mistake ▁in ▁a ▁third ▁round ▁tie ▁against ▁Peter borough ▁United ▁gift ed ▁the ▁oppon ents ▁the ▁lead . ▁He ▁went ▁on ▁to ▁sign ▁for ▁Peter borough ▁in ▁