On Thursday, the Manly Warringah Sea Eagles will become the first team in the competition ever to don a kit which promotes LGBT inclusivity in the sport.
But players weren't consulted and some object to the move on religious and cultural grounds.
The club apologised for its handling of the situation.
Coach Des Hasler said the club had made a "significant mistake" that had caused "confusion, discomfort and pain for many people, in particular those groups whose human rights we were in fact attempting to support".
