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GLASGOW, SCOTLAND - OCTOBER 19: Angelos Postecoglou, Manager of Celtic acknowledges the fans after the UEFA Europa League group G match between Celtic FC and Ferencvarosi TC at Celtic Park on October 19, 2021 in Glasgow, Scotland. (Photo by Ian MacNicol/Getty Images)

GLASGOW, SCOTLAND - OCTOBER 19: Angelos Postecoglou, Manager of Celtic acknowledges the fans after the UEFA Europa League group G match between Celtic FC and Ferencvarosi TC at Celtic Park on October 19, 2021 in Glasgow, Scotland. (Photo by Ian MacNicol/Getty Images)