The Catalan giants are determined to strengthen their back line with the arrival of a world-class centre-half and Silva, who captained PSG to their first Ligue 1 title in 19 years last season, seems to fit the bill.
However, his French employers, who spent £36m to recruit the Brazilian international from AC Milan last summer, are currently unwilling to negotiate with Barca over any potential transfer, Rosell has revealed.
Marca.com quotes him as saying: "Thiago Silva is a player we want - the board as much as the coach. When it comes to him, the price is not an issue.
"We are negotiating with people for whom money is not a factor. And if they're not willing to sit down and talk, we can't do anything.
Silva has four years remaining on his reported £10.3m-a-year contract with PSG.