@hacobcem Thanks. I'm not sure the australian FFA logo would look correct in the centre. It's based on the Aussie coat of arms, which IMHO, should always be on the left chest. Check both RL and RU national jerseys, even the International Rules Jumper.
@hacobcem But it is in the green stripe, opposite the nike logo. If I had centred it, it would have looked odd. Crests don't depend on being centred on any particular stripe.