Waiting in his car, ready to drive off, but with a window down, Celtic striker Leigh Griffiths is cornered by a ‘flat Earther’ who wants to spread the word about the idea.

The man proceeds to ask whether the player has “ever questioned the shape of the Earth” and if he’s “seen bendy water?”

Negative is the good-humoured response before the bloke ploughs on with his theory.

Modern flat Earth societies have existed since the middle of the 20th century and it is said that some adherents are serious and some are not.