Wests Tigers have confirmed young prop Tukimihia Simpkins is being investigated by the NRL Integrity Unit after an incident at the weekend.
The 20-year-old turned himself in after fleeing the scene of an accident in the early hours of Sunday morning having driven unlicensed.
Simpkins, who made his NRL debut last season, wasn't under the influence of alcohol when he mounted the kerb and hit a fence with passengers in the car.
He will now face police questioning.
"Wests Tigers have been made aware of an incident involving NRL player Tukimihia Simpkins," a club statement read on Monday afternoon.
"The club has alerted the NRL to the matter and will continue to work with the NRL Integrity Unit as needed.
"As this remains an ongoing legal matter, the club will make no further comment at the time."
Simpkins, a robust forward, has played five NRL games.