Chelsea are closing on a deal for River Plate defender Emmanuel Mammana.
The Blues want the 20-year-old centre-back but face competition for his signature from Serie A duo Inter Milan and Fiorentina.
It is understood that Mammana's agent Hernan Reguera has been in London recently to hold talks with Chelsea.
A source from Argentine giants River Plate told Goal: “If Chelsea put up £8m, they will get Mammana."