NSW Police are investigating claims of match fixing in a third NRL game.
Officers from the state's Organised Crime Squad are making inquiries after the Seven Network reported an $18,000 bet was placed on Manly's round seven loss to Parramatta earlier this season.
"The Organised Crime Squad is in the early stages of examining information relating to allegations of match fixing in the NRL," a NSW Police spokeswoman told AAP.
The match is the second between the two sides believed to have been investigated for fixing.
The NRL confirmed in June they were reviewing Manly's losses to the Eels and South Sydney last season.