Pompey have started their end-of-season clear-out by transfer listing Adam McGurk and Kal Naismith.
The attacking duo join Matt Tubbs in today being made available for sale by manager Paul Cook.
In addition, former first-choice keeper Brian Murphy has been released along with youngsters Chad Field and Snorre Nilsen.
However, Ben Tollitt, Ben Close and Adam May have been handed new 12-month deals.
And ongoing discussions are taking place with Ben Davies and Danny Hollands over fresh contracts, with Cook keen to keep both at Fratton Park.