The agent of Benfica goalkeeper Jan Oblak has revealed that Real Madrid have made "first contact" over a move for his client.

A report on Monday claimed that Los Blancos, Atletico Madrid and Valencia were all interested in signing the 21-year-old Slovenian.

However, according to Miha Mlakar, Madrid have emerged as the favourites for the stopper.

"Both Madrid and Atletico [are interested]," Mlakar told AS. "There has been first contact with Madrid. The summer transfer window is very long and runs until August 31."

Oblak has a contract with Benfica until 2018.