However, the Blues are said to be keen to get a deal over the line for the full-back and are considering offering Marcos Alonso as a makeweight.
Juventus at the same time will edge Sandro to make a decision as quickly as possible, so their pre-season plans are not halted.
Despite Chelsea reportedly agreeing a £60m fee for Sandro, who contributed three goals and four assists in 27 Serie A matches last season, PSG could still make a late move for the defender and Chelsea are therefore planning a bid for Telles, who could cost around £22m despite having a release clause of £40m. But we know that we are competing with clubs that are in a position to offer wages that are not rational for us.
Chelsea boss Antonio Conte has been handed a £200m war chest to upgrade his squad in preparation for Champions League football next season.
The main thing standing in the way of a move is Diego Costa's refusal to join a Chinese Super League team.
Costa wants to go back to Atletico Madrid despite the La Liga outfit's transfer ban.