Atletico will pay €2.1 million this season, a further €2 million if the player continues to play at the Calderon in the 2014/15 season, and another one million if he extends his contract to 2016, Barca said in a statement.

Victory for Barca at the San Mames and defeat for Real in the Madrid derby at the Calderon would have given the leaders an unassailable 16-point advantage with five matches left.

Spain will announce economic reforms and a tight budget on Thursday, in an attempt to avoid Brussels imposing conditions on a request for an international bailout.