Chelsea are ready to go all out to sign Diego Costa from Atletico Madrid in the summer after making him their top transfer target.

Blues boss Jose Mourinho has told the club’s hierarchy that signing a world class striker should be the priority during the summer transfer window.

And despite links to Luis Suarez, Gonzalo Higuain, Wayne Rooney and Radamel Falcao, Mourinho is believed to have told Chelsea that Costa is the man he wants.

The Brazil-born Spain striker is enjoying another stunning season in La Liga, scoring 21 goals in 26 matches and establishing himself as one of the best forwards in Europe.

His form has not gone unnoticed, with Real Madrid and PSG linked to his services, but Chelsea believe they are in pole position to sign him.