To qualify for maximum dispensation, a player must miss three months of the NRL season and be replaced with a like-for-like player.
Cordner also suffered a series of head knocks earlier in the season while playing for the Roosters.
The NRL is aware of a growing perception among some clubs of favouritism towards the Roosters, but won’t shy away from applying the rule.
The Roosters have arguably led the way when it comes to dealing with concussions and are understood to be willing to rest their skipper for the entire season if medical advice calls for it.
The NRL is reviewing its concussion protocols and awaiting medical advice before putting recommendations to the ARL Commission, likely in the coming weeks, that could modernise the way the code implements its welfare policy.
It comes almost 12 months to the day since the NRL handed Canterbury $350,000 in salary cap relief following a shoulder injury to former playmaker Kieran Foran during an end-of-season Test match for New Zealand in 2019.
Canterbury, who at the time were paying close to $1.2 million a season for Foran’s services, called for the NRL to review the compensation policy. Club management wanted teams to receive 80 per cent of a player’s contract instead of capping relief at $350,000.
Foran needed surgery after the injury, which he picked up at Eden Park while playing against Great Britain 15 months ago. Canterbury expressed concern their marquee signing could potentially miss the entire season. Instead, Foran returned in round four and the Bulldogs were unable to replace him with a like-for-like player, restricting the value of relief.