Ben Davies has signed for Grimsby Town on a 12-month deal.
The 35-year-old made 51 appearances and scored once for Pompey last season, establishing himself as fans’ favourite.
However, a new deal could not be agreed to prolong his Fratton Park stay.
He has now linked-up with the Mariners, who are back in the Football League following a six-season absence.
Ex-Pompey player Danny East served as their right-back last season, making 25 league appearances, however was released this summer.