Martin O'Neill believes Celtic could land a European trophy under Ange Postecoglou.
The Hoops returned to the Champions League this season but finished bottom of their section with just two points from six games. That meant they were knocked out of European competition altogether in a first season back at the top table for a while. It was a learning experience for the Scottish champions with their boss determined to get back next term and make a better fist of things.
Last season Rangers reached the Europa League Final before losing out on penalties in heartbreaking circumstances against Bundesliga outfit Frankfurt. That run has given legendary Parkhead gaffer O'Neill belief the current crop under Postecoglou can go one better than the Light Blues and his class of 2003 in the second tier competition in the future.
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