Celtic avoided a ban on supporters attending the second leg in Munich next Tuesday despite receiving a previous disciplinary notice from UEFA over a smoke bomb that was thrown on to the pitch at Aston Villa in January.
Celtic could face another UEFA fine over a banner displayed by their fans during the first leg of the Champions League play-off against Bayern Munich on Wednesday night.
Celtic escaped a travelling ban for fans despite smoke bomb thrown on pitch at Villa Park.
Meanwhile, dozens of people were injured in Munich in a suspected car attack yesterday - just a few days before up to 10,000 Celtic fans prepare to travel to the city.
Celtic could face fine after banner displayed by fans during Bayern Munich game.
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