The Blues will make their third signing of the summer just hours before the transfer window closes in England
Chelsea have agreed to sign Saul Niguez on a season-long loan from Atletico Madrid with an option to buy.
They will sign the 26-year-old after a turbulent and protracted day of talks that saw the deal described as 'dead' and then subsequently revived.
Amid those talks, Atleti entered negotiations to sign their former player Antoine Griezmann from Barcelona.