Sporting CP coach Ruben Amorim has already addressed Chelsea's interest this season.
Chelsea have made contact with Amorim's minders this week as they seek a long-term manager after the sacking of Graham Potter.
Before the appointment of Potter, Amorim was also linked with Chelsea after the dismissal of Thomas Tuchel.
At the time, Amorim told O Jogo: "The project I am in is the project I want. I have another year and a half of contract.
"Chelsea have presented a coach for the next five years. I am happy here and I am not thinking about another project."