Schalke defender Thilo Kehrer is interesting Barcelona.
BILD says Barca, Valencia and Juventus are in contact with the 21 year-old's minders.
Kehrer has just over a year to run on his S04 deal, but the Germans are desperate to keep hold of the youngster.
Barca, Valencia and Juve can all offer a far superior contract to his current €300,000 salary and also Champions League football.
But Schalke will attempt to upgrade Kehrer's deal before agreeing to allow him to leave later this summer.