Hi there !
I don't understand how am I suppose to train my ball-playing gk.
More specifically, I'm not sure if I should train his defense to one-third of his main stat.
This role was not in the training 101 post

Thanks !

Hi,
For ball-playing GK you should train passing instead of defense.

Yes, the defence is no good for a goalkeeper who is a returner, you have to train him to tackle, place and pass.