Pompey have added a trip to Gillingham to their pre-season preparations.
The Blues go to Priestfield to meet the League One outfit on Saturday, August 1 (3pm).
Former Pompey defender, Justin Edinburgh, is in charge at the club - and did the double over Andy Awford’s side last season as Newport County boss.
Pompey open their pre-season campaign at Hawks on July 11 before travelling to Bognor on July 17. A Pompey XI go to Burnham on August 4.