Martin O’Neill always speaks passionately about his time at Celtic after the former Hoops boss became a legend in the eyes of the fans over his 5-year spell at the club. Winning a treble in his maiden season was the beginning of the end of Rangers’ domination of Scottish football and a return of Celtic to the top of the domestic game and in Europe. Taking Celtic to the Champions League group stages was a massive achievement as O’Neill’s team gave many of Europe’s top sides a bloody nose. And then there was Seville. The 2003 UEFA Cup final was the pinnacle of O’Neill’s achievements at Celtic de…
