Yup experience has been reset now. Not sure why your keeper showed no improvement. Might even be worth a quick post in the bugs forum, one of the admins might be able to shed light on it.
EDIT - did he play many competitive games or were they mostly friendlies? AFAIK Friendlies don't generate much experience so it's possible that his 9 games weren't enough.
EDIT - did he play many competitive games or were they mostly friendlies? AFAIK Friendlies don't generate much experience so it's possible that his 9 games weren't enough.