Pompey are set to seal the signing of Kyle Bennett.
As revealed by The News on Friday, the Doncaster left-winger has been pursued by Paul Cook as he seeks to make his first Blues recruit.
Rovers boss Paul Dickov had been keen to keep the 24-year-old at the League One club.
Yet the lure of Fratton Park has proven strong and Bennett is poised to arrive as Cook overhauls his playing squad.
Pompey are also reported to be monitoring Enda Stevens, a left-back who made 32 appearances for Doncaster this term on loan from Aston Villa.