You just can’t work out some players; some days they are veritable world-beaters, while on other days they can look as though they struggle to stay upright.

These are the enigmas of the world game; the men that just don’t seem to be able to string more than a few decent performances together.

It’s not just your everyday inconsistency; it isn’t just ups and downs; it’s mountain peak and valley floor scale differences in form.

When they are good, oh man, they are good, but when they are bad it is as if you have never seen anything worse.

It is such a contrast in fortunes that makes these men so fascinating for neutral football fans and so incredibly infuriating for the supporters of their respective clubs.

The Premier League has a number of these and GMF have picked out five of them – click on to see who they are…

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