The Hawks have signed former Pompey Academy graduate Bradley Tarbuck.
The 20-year-old has moved to Westleigh Park after spending last season at Dorchester Town.
The forward is manager Lee Bradbury’s second signing following their relegation from National League South.
Jason Prior made the move to the Hawks last week after arriving from Bognor.
Tarbuck made three first-team appearances for Pompey – all as a substitute.
His debut came in the 3-0 Capital One Cup defeat at the hands of Plymouth in August 2012.
He was released by the Blues at the end of the 2014-15 season.