The NRL will review a concussion suffered by Souths forward Sam Burgess in their 20-6 loss to the Roosters in Sydney last night.
Burgess came off second best trying to put on a big tackle and played on for four minutes before being taken off for a Head Injury Assessment.
Three clubs have recently been fined for failing in their duty of care to players who suffered head knocks.
The England International said after the match that he felt he should have passed his second concussion test in as many weeks.
Highlights: Roosters roll over Rabbitohs 20-6
"I felt alright on the field," he said.
"The medical staff said I should leave the field and I followed their instruction.
"It's there to protect the players. It's disappointing but it's what we have to do now."
The Newcastle Knights, St George Dragons and Gold Coast Titans all copped AU$350,000 fines for ignoring concussion protocol in Round three games.
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