The sexual assault allegations levelled against Jarryd Hayne have the potential to end his sporting career, with Parramatta and St George Illawarra expected to abandon their pursuit of the embattled star’s signature.

Police are investigating an alleged sexual assault that took place in the Hunter region on grand final night. A NSW Police spokeswoman confirmed police were still yet to speak with Hayne, adding that the investigation was ongoing.

The alleged victim was reportedly in contact with Hayne via social media beforehand and claims to have photographic evidence of the injuries she sustained during the alleged incident. She was interviewed by the NRL integrity unit before reporting the matter to police on Monday.

Out of contract: The career of former Parramatta Eels star Jarryd Hayne hangs in the balance. Credit:Wolter Peeters

Hayne is currently defending a sexual assault allegation levelled against him in a civil lawsuit launched in the Santa Clara County Court in the US in December last year. The claim relates to an evening in December 2015, while Hayne was playing for the San Francisco 49ers, when he went home with a woman from a San Jose bar and allegedly had non-consensual sex with her.