▁j er se ys ▁is ▁that ▁of ▁the ▁University ▁of ▁Notre ▁D ame . ▁The ▁team ▁we ars ▁either ▁white ▁or ▁n avy ▁blue ▁for ▁most ▁games , ▁but ▁occasionally ▁special ▁k elly ▁green ▁j er se ys ▁with ▁gold ▁numbers , ▁ev oc ative ▁of ▁the ▁" F ight ing ▁Irish ", ▁are ▁chosen ▁for ▁a ▁major ▁contest . ▁ ▁Association ▁football ▁ ▁Third ▁k its ▁existed ▁in ▁English ▁football ▁at ▁least ▁as ▁early ▁as ▁the ▁ 1 9 3 0 s . ▁Until ▁ 1 9 8 9 – 9 0 , ▁the ▁FA ▁Cup ▁competition ▁rules ▁stated : ▁" Where ▁the ▁colours ▁of ▁the ▁two ▁compet ing ▁clubs ▁are ▁similar , ▁both ▁clubs ▁must ▁change ▁unless ▁alternative ▁arrang ements ▁are ▁mut ually ▁agreed ▁by ▁the ▁compet ing ▁clubs ". ▁A way ▁k its ▁were ▁often ▁similar ▁as ▁well , ▁therefore ▁third ▁k its ▁were ▁worn ▁in ▁the ▁ 1 9 4 8 ▁FA ▁Cup ▁Final ▁by ▁Manchester ▁United ▁and ▁the ▁ 1 9 5 0 ▁final ▁by ▁Ar sen al . ▁Similar ▁rules ▁were ▁employed ▁by ▁European ▁gover ning ▁body ▁UEFA , ▁with ▁Manchester ▁United ▁winning ▁the ▁ 1 9 6 8 ▁European ▁Cup ▁Final ▁in ▁a ▁blue ▁third ▁k it . ▁ ▁Teams ▁sometimes ▁needed ▁to ▁find ▁makes h ift ▁third ▁k its ▁for ▁their ▁players . ▁One ▁notable ▁example ▁being ▁France ▁having ▁to ▁wear ▁the ▁green - and - white ▁stri pes ▁of ▁local ▁club ▁C . A . ▁Kim ber ley ▁for ▁their ▁ 1 9 7