Quote: sandy "you are wrong, the rule is that a player can be replaced right up to kick off time if there is a legitimate medical reason (injury or illness) providing their is proof, a first grade ref told me that a while back. Of course it rarely happens as you have 18 players warming up before kick off's but all teams have done it at one time or another, all perfectly legally.'"
It is legal, but also open to abuse and gamesmanship, so a card you should really use sparingly with the RFL, when there's something at stake. Blake Green back for Good Friday, at the last minute?