
The 19-year-old has linked up with the Pilgrims from Spanish side Cadiz C – and arrives on an initial one-year-contract, with a further year's option.
Mauro will officially join the club on July 1 – pending the completion of the formalities of international clearance and Football Association and National League approval.
He has 10 full international caps to his credit so far – having appeared in domestic club football in both Gibraltar and Spain.