Isaako, who played astir of his 76 archetypal people games connected the helping with a fewer astatine fullback, becomes the archetypal backmost signed by the enlargement club, and their 3rd established signing wide - aft Felise Kaufusi and Ray Stone.
They person besides locked successful teenagers Harrison Graham, Valynce Te Whare, and Michael Roberts.
"Jamayne is fast, elusive and a point-scoring machine, truthful we invited him into the archetypal ever Dolphins squad," nine CEO Terry Reader said.
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"We person signed a mates of prime forwards successful Felise Kaufusi and Ray Stone truthful it is encouraging to get an planetary extracurricular backmost onto our roster arsenic well.
The 25-year-old made his debut successful 2017, playing 1 crippled earlier becoming a fixture successful Brisbane's 2018 squad, earning rookie of the twelvemonth honours by scoring 11 tries and kicking goals astatine a 82.91 per cent occurrence rate.
He has represented some Samoa and New Zealand astatine planetary level.
"Jamayne is simply a large pick-up for the Dolphins for our archetypal twelvemonth – it means we are beauteous definite we already cognize who volition beryllium kicking goals for america successful 2023," Reader said.
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