Tallyn Da Silva is set to leave the Tigers.
The rising hooker has agreed to join the Eels, per News Corp.
It is another blow to Benji Marshall's side, who lost Lachlan Galvin to the Bulldogs just weeks ago.
Da Silva is expected to head to Parramatta immediately on a four-and-a-half-year contract.
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His deal – worth a reported $650,000 a season – will need to be finalised on Monday before the June 30 deadline.
The 20-year-old progressed through the Tigers' pathways teams before making his NRL debut in 2023.
He has made 22 first-grade appearances to date.
Despite his talent, Da Silva has been primarily restricted to the bench, with veteran Api Koroisau the club's first-choice hooker.
Brendan Hands, Joey Lussick and Ryley Smith make up Parramatta's current dummy-half stocks.