Speculation was rife a fortnight ago with reports surfacing the club had tabled a rich contract extension to the 21-year-old which included a get-out clause to defect to rugby union ahead of the 2023 World Cup.
Already contracted to the Knights until the end of 2021, clubs are free to approach the Queensland star in November and Newcastle have confirmed they want him locked in long term.
However, on Monday, Ponga rejected the reports and said he was focused on round one, not what he might be doing in four years.
