Schalke's Leon Goretzka is the man in question. The midfielder has seen his worth grow significantly in the last 12 months after first starring at the Confederations Cup for Germany and then continuing his form on the domestic stage.
The 22-year-old is considered to be one of the Bundesliga's star attractions at the moment and it appears that intrest from elsewhere is already mounting.
Spanish publication 'Mundo Deportivo' claims that Barca representatives were in attendance for Schalke's game against Mainz at the VELTENS-Arena on Friday, as they cast their eye over the German international.
Goretzka didn't disappoint as he found the net once again to make it three goals in three games for him as he inspired his side to a 2-0 win.
The former VFL Bochum man has been in fine form this season, with four goals in nine Bundesliga games and an impressive six in 12 for his national side making plenty of teams sit up an take notice.
The playmaker will no doubt be a success wherever he goes, with his vision, technique, eye for a goal, stamina and combative nature making him the complete midfielder.
Goretzka has just eight months left on his contract with Schalke, meaning that he will be free to discuss a bosman move to Catalonia in January if he fails to sign a new deal with his current employers in the meantime.