Pompey have completed the signing of defender Zak Swanson from Arsenal for an undisclosed fee.
The 21-year-old right-back has put pen to paper on a two-year deal, with the club option of a further 12 months.
Blues boss Danny Cowley said: “We’ve highlighted that we want to try to bring talented young players to the club.
“Zak is exactly that and brings an energy and athleticism to our squad after a fantastic footballing education at Arsenal.
“He’s technically very good and has lovely passing skills, along with the ability to manipulate the ball in tight areas.
“He loves to overlap and get into the final third of the pitch to threaten the opposition goal, providing crosses and shots.
"He’s technically very good and has lovely passing skills, along with the ability to manipulate the ball in tight areas."
“There are still areas of the game for him to work at – like with all young players – but it’s an exciting signing because we see the growth in Zak.
“We love the fact that he’s versatile. We’ve seen him play in a number of positions for Arsenal and he does them all equally well.
“He’s a rounded footballer and is tactically intelligent, so we look forward to working with him and are delighted to have brought him out to Spain with us.”
Swanson joined the Arsenal academy at the age of six and has represented them at a variety of youth levels, including in Premier League 2.
He previously spent time on loan at Dutch outfit MVV Maastricht and has shown his versatility by representing the Gunners across the back four and also in midfield.
Swanson was a regular presence on the bench for Mikel Arteta’s men in the second half of last season.