Incidents, Events & Controversies | About Celtic Details Ref: Celtic protest led by Chairman Bob Kelly against playing Eastern European Sides in European Cup 1968/69 due to Soviet Invasion of Prague aka: Prague Spring, Iron Curtain v Celtic FC, Soviet Invasion of Prague/Czechoslovakia Date: 1968 Link: European Cup 1968/69 Summary “Celtic will hold their heads … Continue reading Prague Spring & Soviet Invasion – Celtic protest in European Cup (1968)