The 29-year old joins from Sittingbourne where he played a key role in a positive 2024/25 season as the Brickies narrowly missed out on promotion to the Isthmian League Premier Division on penalties in the play-off final.
An eye-catching wide man with plenty of pace, Sinai also made key contributions towards Sittingbourne’s impressive run to the last eight of the FA Trophy, netting in shock wins over both Enfield Town and Salisbury.
Prior to his time at Sittingbourne, he represented Bowers & Pitsea and Sheppey United and now arrives at Park View Road as new boss Lee Martin’s third signing of the summer after securing Jack Paxman and Lekan Majoyegbe.