The Gold Coast Titans are reeling after Queensland star Jai Arrow told the NRL club he will take up a lucrative four-year South Sydney deal from 2021.

There was speculation that Arrow will seek an early release and make his Rabbitohs debut in 2020 but it is believed the Titans expect the star forward to see out his current contract.

The Rabbitohs have reportedly signed Arrow on a $3.2 million contract after identifying the 24-year-old as an ideal replacement for retired captain Sam Burgess.