Celtic face AZ Alkmaar this Thursday in the second leg of their Europa League play-off.
As the game approaches, Andy Bargh, Tony Haggerty and Sean Martin look back on some other vital European qualifiers of years gone by, before a brief discussion on Thursday's game and Sunday's derby against Rangers.
Ties against Spartak Moscow, Shakhtar Karagandy and Hapoel Be'er Sheva are under the spotlight.
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