The National Rugby League has put coaches on notice after an apologetic Ricky Stuart was fined $10,000 for abusing referee Paul Simpkins and a touch judge on Friday night.

The Roosters were hit with a breach notice by the NRL on Tuesday as a result of Stuart's abuse of Simpkins and touch judge Steve Carrall during the second half of the club's 26-14 loss to Brisbane at Aussie Stadium.

"I apologise," a contrite Stuart said on Tuesday night.

"I was unaware of what I said and how loud it was. I have learnt from the situation and I wish to move on."

The incident prompted the NRL to remind coaches - particularly those who sit on the sidelines - of their responsibilities on Tuesday.

Stuart is one of several high-profile coaches, including Penrith's John Lang, who watch games from ground level rather than the comfort of the coach's box.

NRL chief executive David Gallop said the league was happy for them to remain there provided they maintained their composure.

"We would hate to see a time where a coach's language or comments led to him being asked to leave a sideline, but it is possible that it could happen," Gallop said.

"There can be no excuse for club officials making inappropriate comments and abusing officials."

Tuesday's fine was the second of Stuart's short coaching career.

Brought to you by AAP © 2024 AAP