Bulldogs fullback and 2012 Dally M Medal winner Ben Barba has been suspended indefinitely by the club.
The decision to suspend Barba comes after the Bulldogs were informed of a number of behavioural issues, a club statement said.
"Whilst we all know the undoubted on-field attributes and abilities that Ben displays, we must always maintain our focus on the more important issues of personal development and accountability," Chief Executive Officer Todd Greenberg said.
"It is our hope that the media and the many rugby league fans understand and respect the need for privacy in order for Ben and his family to make the relevant adjustments that are required for him to return to the playing field."
Barba was set to take part in the official NRL launch on Wednesday night.