Pompey Women have signed 24-year-old defender Laura Ingram.
She returns to the Blues after spending five seasons with Chichester and having played 87 times for their first team.
Ingram began her footballing career with the Blues at the age of 16, making 26 appearances with the reserves between 2011 and 2014.
She will wear the number five shirt for Pompey and could feature for the club in Sunday's friendly at Swindon.
"With a previous connection to Pompey, she knows what this club is all about."
Blues boss Jay Sadler said: "We're really pleased to have Laura here. Not only will she offer a physical presence in defence, but her technical qualities will aid our style when building the attack.
"She first caught our eye last season, after breaking into the Chichester side. With a previous connection to Pompey, she knows what this club is all about.
"Laura will be an integral part of the squad for the new season and I look forward to working with her and helping to further develop her game."