Pompey have signed forward Christian Saydee from Bournemouth for an undisclosed fee.
The 21-year-old has put pen to paper on a three-year contract, having enjoyed a productive stint on loan at Shrewsbury last season.
Blues boss John Mousinho said: “Christian is an exciting young prospect and arrives here off the back of a successful spell in League One.
“His tally of goals for Shrewsbury was very impressive for someone his age and we believe this is the next step for him.
“We feel he can really flourish here and he’s an exciting prospect for the future, but can also do some damage now.
"His tally of goals for Shrewsbury was very impressive for someone his age and we believe this is the next step for him."
“Christian is a powerful and athletic forward who can run the channels and is also excellent in front of goal.”
Saydee is a graduate of the Bournemouth academy and made a couple of appearances for them in the Championship.
He also gained experience with spells out on loan at Poole, Weymouth and Burton before linking up with Steve Cotterill’s Shrews.
Saydee struck seven times in 38 games – including an outing at Fratton Park – as they finished 12th in the League One standings.
He had a brief trial period with Pompey last summer, featuring in friendlies at Havant & Waterlooville and Gosport.