Blues boss Andy Awford has insisted there have been no approaches for Sonny Bradley.
A spokesman from the company representing the Pompey defender has claimed a number of Championship and League One clubs are monitoring his progress.
Birmingham and Sheffield United were both named as potential suitors.
It is clearly a calculated move from the 22-year-old’s camp to link the former Hull man with a summer move away from Fratton Park.
Bradley faces a battle for a first-team spot next season, despite a highly promising first six months to his Blues career.
He has a year remaining on the deal he signed with Pompey only last summer, after leaving the KC Stadium.
But Awford is adamant there have been no enquiries over Bradley to date.
He said: ‘Sonny is a contracted player for Portsmouth and we have had no contact whatsoever from any club.
‘If they do they need to get in touch – but we haven’t had any other football club yet wanting to talk about him.
‘Sonny is part of the squad moving forwards and is a contracted player.’
Bradley made 38 appearances during his maiden Blues campaign, establishing himself in the heart of defence.
For the first half of the season he was one of the club’s outstanding performers – firstly under Guy Whittingham and then Richie Barker.
But following the arrival of Ben Chorley, the return to form of Bondz N’Gala and then talented youngster Jack Whatmough being given a chance in defence, Bradley slipped out of the frame for a starting spot.
He started three of Pompey’s past 19 games and failed to make the match-day squad for the final fixture of the season against Plymouth.