Yes. Every single nrl club doctor all gave their permission to your anonymous player to stay on the field.
They all left their respective clubs and flew to the anonymous game where they all sat huddled together just in case a decision by all of them at once would need to be made. And then it happened. A player was concussed; someone (who?) tried to take him off but he wanted to stay on the field so badly because he didn't want to let his anonymous team mates and his anonymous coach down. So not knowing what to do they turned to all 16 club doctors who were already conveniently huddled together in the crowd! After little deliberation, because the doctors were so incompetent they had never heard of evidence based practices, they unanimously allowed the anonymous player to stay on the field. The 16 club doctors felt they had made the right decision, but little did they know, eventually a member of a forum somewhere, sometime will bring up this example to refute anything they ever decide as a group again.
And that is how it happened.