Celtic manager Ange Postecoglou felt their 3-0 defeat by Real Madrid was a cruel reminder of the fine margins at the top level.Postecoglou's side passed up a number of chances to take the lead against the Champions League holders in their first group game in five years.

Celtic manager Ange Postecoglou felt their 3-0 defeat by Real Madrid was a cruel reminder of the fine margins at the top level.Postecoglou's side passed up a number of chances to take the lead against the Champions League holders in their first group game in five years.