One video shows the man in question, dressed in a Clare training top, shorts and wearing a baseball cap, hovering with intent on the New Stand touchline.

A supporter in the stand has his camera phone trained on the man, who is seen drinking from a bottle of water before making his move.

It is not clear whether the individual in question is an official member of the Clare backroom team but he proceeds to make his way behind the Killinan End goal, patrolled by Cork goalkeeper Anthony Nash in the first half, before doubling back and picking up a red-coloured bag.

A second, shorter, video clearly shows the man taking the bag before he tosses it into the terrace and runs back to the New Stand side of the field.

It has also been reported this morning that Cork had to replace the sliotars that were meant for Nash’s use.

Munster Council officials are expected to launch an official investigation into the matter – and Clare may be asked to provide the identity of the man in question.

If Munster Council decide to proceed with an official charge, the individual could face a lengthy touchline ban, while Cork will also ask how he managed to get into a position where he could take the bag and then dispose of it.