Suspended Shark Greg Bird is being investigated by the club over new claims of alcohol-related off-field indiscretions.
The NSW Origin star and Australian international is facing court this month on charges of assault, causing public mischief and making a false statement to police following the alleged glassing of his girlfriend Katie Milligan.
He was stood down by the Sharks for the latter part of the season after being charged, but the club is now also investigating two more claims.
One is that Bird abused passers-by on the street from the balcony of his apartment, the other that he jumped into the back seat of a car and told the driver to take him to a pizza shop.
"We are aware of the allegations and are trying to get more information," Cronulla chief executive Tony Zappia told Fairfax.