Rocks recruit Charlton's under-23 captain
The 20-year-old has been at Charlton since he was 13 and is now captain of their under-23 team.
He has played for England's under-16s and under-17s and is described by Charlton's website as 'strong in the tackle and possessing a fearless mindset'.
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Hide AdEdwards will go straight into the team at Truro, where the Rocks will be without three layers who have played at full-back this season, James Crane, Harvery Whyte and Dan Beck.
They will hope he can shore up a defence who have let in three in each of their past two league games.