According to The Sydney Morning Herald, Souths coach Wayne Bennett told Doueihi to look for opportunities elsewhere as he will be the second-choice fullback behind Mitchell.
The 21-year old has two years to run on his deal with the Rabbitohs and stands to earn $500,000 this season and more in 2021.
It is believed that Bennett is happy for Doueihi to remain at Redfern, but gave him his blessing for him to sign with a rival.
Doueihi was originally told by Bennett he’d be playing five-eighth, only for Cody Walker to re-sign, and was then given the reigns to the No. 1 jersey, only for Mitchell to join the club.