For the first time, all league players are expected to undergo a heart scan next NRL season before they take the field.
Australian media report NRL and under-20s players will undergo electrocardiogram (ECG) screening ahead of the opening round, in a move funded by the governing body.
Players might also undergo MRI scans in the pre-season and will be retested if they suffer a concussion as a way of tracking any brain damage.
Club doctors and the NRL's chief medical officer Paul Bloomfield met for five hours last weekend with concussion and prescription drugs being on the agenda.
The ECG screenings will cost the NRL about $32,000 and the proposal will go to the Australian Rugby League Commission soon for final approval. A NRL spokesman confirmed plans to test players.