The Taysiders, who have never won at Celtic Park in the competition and their last league victory in the east end of Glasgow was in 2001, looked to be on their way to a historic success when midfielder Ethan Hamilton thundered in his first Dundee goal in the 49th minute of the fifth-round tie.
The home side toiled thereafter but with effectively the last touch of the game which went beyond the five added minutes on the board, debutant Junior Adamu flicked in a dramatic leveller.
Substitute Sebastian Tounekti, who set up the goal, fired Celtic in front early in extra time and it was enough to take Martin O’Neill’s men into the quarter-final draw, bringing some much needed positivity to the club this week.
The home fans had been…