Pompey have pulled off a double transfer swoop this afternoon.
Manager Andy Awford has continued his Blues overhaul by adding midfielder James Dunne and keeper Michael Poke to his ranks.
Dunne joins from Stevenage, where he was under contract.
He spent the second half of last season on loan at St Johnstone in the Scottish Premiership.
Poke spent the past few years at Torquay as their No1 keeper but was a free agent following their relegation from the football league.
The duo will link up with their new Pompey team-mates on Thursday for the start of pre-season training.