South Sydney coach Jason Demetriou will ask the NRL why he lost a player to a failed head injury assessment when he believes they weren't concussed.
Rabbitohs winger Taane Milne was ordered to stay off the field in the first half of Sunday's 32-12 loss to Canberra in Dubbo.
After the game, the coach used his press conference to publicly question why the independent doctor ruled Milne out of the contest.