Barcelona goalkeeper Jasper Cillessen has said Ajax duo Matthijs de Ligt and Frenkie de Jong would be keen to play for the club.
Sources have told ESPN FC that Barca are interested in singing De Ligt and De Jong as they target a new centre-back and midfielder, with reports saying they could cost up to €130 million.
And Cillessen, who plays alongside both for Netherlands, said they would be open to making the switch to the Camp Nou.
"Everybody in the national team would like to play for Barcelona...
Ajax sporting director Marc Overmars has dashed Barcelona's hopes of signing Matthijs de Ligt in January, saying there is no chance the defender will leave in the winter window.
Sources have told ESPN FC that De Ligt and Ajax teammate Frenkie de Jong are being monitored by the La Liga champions.
Barca failed with two bids for De Jong, who had been their primary summer target of the two, but early-season problems in defence have forced them to rethink their strategy.