Marko Livaja of AEK Athens (L) and Kristoffer Ajer of Celtic compete for the ball during the UEFA Champions League Qualifier between Celtic and AEK Athens at Celtic Park Stadium on August 8, 2018 in Glasgow, Scotland. (Photo by Julian Finney/Getty Images)
Marko Livaja of AEK Athens (L) and Kristoffer Ajer of Celtic compete for the ball during the UEFA Champions League Qualifier between Celtic and AEK Athens at Celtic Park Stadium on August 8, 2018 in Glasgow, Scotland. (Photo by Julian Finney/Getty Images)
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