Chelsea are determined not to lose Diego Costa this summer.
Costa is the No1 summer target for former club Atletico Madrid.
However, the Daily Star says Chelsea boss Antonio Conte wants to build his team around him.
The club hope a new contract with bigger wages will sweeten the deal for Costa, who hasn't always looked entirely happy in West London.
Should Los Rojiblancos make a move this summer, Diego Simeone will likely play a huge role in convincing the striker to return to the Estadio Vicente Calderon.