Everton play relegation-threatened Swansea this weekend and the Welsh club's manager Paul Clement has sympathy for the strains some players feel.
He said: "A lot of these situations go undetected because there is a big stigma attached with mental illness and depression.
Horribly true I'm afraid.
Without going into any details, I know first hand exactly what he is saying is 100% true.
As a consequence, you just suffer in silence all on your own until the dam wall starts to crack up.