To me this just highlights the pressure some of these footballers put on themselves.
Yes, most can console themselves with the all the money they're making, but it isn't enough for some.
Kirkland was an up and coming keeper, once slated to be the next England keeper and he did make it to the top. However, the hurt he must of felt to not being able to latch on and stay up there can be unfathomable for us "normals" and I'm sorry to hear that it almost consumed him.