Former Chelsea youngster Nortei Nortey signed for Dover in July after impressing boss Chris Kinnear during the pre-season campaign.
The midfielder, who joined the Blues as 14-year-old before being released by the Premier League side aged 19, has put pen-to-paper on a one-year deal.
After leaving Chelsea, the now 22-year-old Londoner has spent time playing in the National League for Welling United, Wrexham and Solihull Moors.
He made 32 league appearances for Welling in the 2015/16 season before playing six games for Wrexham at the start of last season.
Nortey then joined Solihull where he made 18 appearances, including coming on as substitute against Dover in the 0-0 draw at Crabble last March.