The Spain striker has been expected to exit Stamford Bridge for most of the summer after he revealed Antonio Conte had told him he wasn’t in his plans for next season.

And a return to former side Atletico has been touted after they failed to sign first choice target Alexandre Lacazette, who moved from Lyon to Arsenal earlier this month.

The move is complicated by the Spanish side’s transfer ban that prevents them from registering any new players before January.

That would leave Costa sitting on the bench for the first half of the season should they sign him this summer.