Perhaps you yourself should see the school counsellor.

No amount of urging your friend to talk or seek assistance will help unless your friend feels safe to do so. That is why I agree that the school counsellor might be a good route.

Soccer, as with many competitive sports, can really produce some highly competitive parents. If this abuse is occuring on the field then it is supposed to be handled by the official (not sure about BC but here in Saskatoon each coach and each official must take courses in dealing with such situations). It is a tough situation for your dad (coach) to be in too.

My son is a head coach for a club here and he has told me of parents he has barred from the fields.