Another summer arrival at Fratton Park
Pompey have swooped to sign Drew Talbot on a two-year deal from July 1.
The versatile 29-year-old is a free agent after leaving Chesterfield, where he made 277 appearances.
He was part of the side – managed by current Blues boss Paul Cook – who secured the 2013/14 League Two title.
Although predominantly used as a full-back, Talbot has also previously performed in midfield and as a striker.
Pompey’s assistant manager Leam Richardson said: “I’ve worked with Drew before and he’s a fantastic signing for this club.
“He’s everything that our fans like about a player – he’s robust, works hard and is very fit. He’s a great lad and we expect big things from him.”
Talbot started his career at Sheffield Wednesday and helped them claim League One promotion in 2005 by scoring in the play-off final.
He then moved on to Luton before signing for Chesterfield in 2009, where he also won the Football League Trophy in 2012.