The NRL hit the Bullodgs with a big financial penalty after images of the celebrations hit the media.

Club CEO Andrew Hill said his club accepts that the images and behaviour from the Mad Monday get together were "unacceptable and an extremely bad look for the game".

"As a result of those actions the police are continuing their investigation into the behaviour of a number of players on the day," Hill said in a statement.

"They are all good people that have acted in an immature and juvenile way. They have accepted responsibility for their actions and apologised to the club for their behaviour.

"The club will now work with them from an education and player welfare point of view and we will continue to support our players through this time."

The Bulldogs will impose their own sanctions on the following players:

- Adam Elliott - $25 000 fine (with $ 10000 suspended)
- Asipeli Fine - $25 000 fine (with $ 10000 suspended)
- Marcelo Montoya - $10 000 fine (with $ 5000 suspended)
- Zac Woolford - $10 000 fine (with $ 5000 suspended)

Hill also said: "While the club is disappointed at the severity of the fine, it accepts that the images and behaviours on the day were unacceptable and a poor reflection on the club and the game.

"The club will now hold a full review and put steps in place to make sure that this situation never happens again."