Catalan daily newspaper Sport understands that Barcelona have made Borussia Dortmund star Marco Reus their number one priority this summer.
The Camp Nou outfit want the Germany international to be their marquee signing for the 2014/2015 season and they are working hard on the deal that would see the 25-year-old move to Catalunya.
El Mundo Deportivo has learned that the club have reached an agreement in principle with the player, but they also need to find an understanding with his employers.
Barcelona look set to start the bidding at €35 million and it remains to be seen whether Borussia will be tempted to sell.
Marco Reus has enjoyed another great season with the Millionaires, having managed 23 goals and as many assists in 44 competitive fixtures.