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Former top-flight striker James McFadden is clear that Celtic will need to be at their very best when they face Atalanta at the end of this month.
The Bhoys have absolutely been flying in their domestic league and they also started their Champions League campaign with a 5-1 win against Slovan Bratislava.
Last time out in Europe though, Brendan Rodgers’ men were demolished 7-1 by German giants Borussia Dortmund and their next opponents in Europe are Europa League holders Atalanta.