Suli was among five players farewelled by the Sea Eagles on Tuesday, despite still being contracted to the club until the end of 2022.

A promising teenage talent, Suli was handed a lifeline by Manly in 2018 after being sacked by both Wests Tigers and Canterbury.

He starred in the Sea Eagles' run to the 2019 finals but fell out of favour under Des Hasler, who this year opted for more defensively sound centres.

That left the 23-year-old pushing for a release from his $550,000 contract, allowing for a move to the Dragons who had offered him more money last year.

Suli will likely fit straight into the centres for the Red V, who have let a number of members of their backline go including Gerard Beale.

"To secure Moses for the next three years after trying to sign him a couple of seasons back is certainly pleasing," Dragons GM of football Ben Haran said.

"Our young outside back talent pool will only benefit from the arrival of Moses.

"Moses is a strong, powerful and skilful centre. Equally important, he is keen to make an immediate mark at the Dragons."

It comes as the Dragons close in on the signature of Aaron Woods, with the former NSW State of Origin prop all but signed at the club from Cronulla.

Meanwhile, Manly confirmed Jack Gosiewski and Zac Saddler will not be re-signed, with Curtis Sironen (UK-bound) and Tevita Funa (NSW Waratahs) also missing at Brookvale Oval next season.

Veteran winger Jorge Taufua and Morgan Boyle have been retained by the Sea Eagles on one-year deals while utility Dylan Walker is expected to finalise a new contract.

Australian Associated Press