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According to Italian media outlet Corriere dello Sport, Chelsea have informed interested clubs that Emerson will only leave for a straight cash sale or on-loan with an obligation to buy in June.
The Italian International has failed to establish himself as Chelsea’s first-choice left-back and has been linked with an exit in January.
Napoli and Inter Milan are both in contact with Chelsea for the Italy international.
At Inter, he would be reunited with former Chelsea manager Antonio Conte, while Napoli see him as a replacement for wantaway left-back Faouzi Ghoulam.