Juventus have categorically told Chelsea and Wolfsburg that Kwadwo Asamoah is not for sale.
Asamoah is on the verge of regaining full fitness after being sidelined for five months following a knee surgery.
Chelsea manager Jose Mourinho knows about the Italian league and appreciates the flexibility of the Ghana international.
During the winter transfer window, the Blues were linked with a £24m deal but talks broke down.
Asamoah is contracted to Juventus until 2018 and still highly rated by the Turin-based club.