Sarri is delighted about Andrea Barzagli's return in a coaching capacity.
"I talked to Andrea in June. He had other commitments back then and asked if he could give me an answer in September, and now he’s here.
"We're delighted that he’s joined our staff, now he must see the work we do.
"His first task will be to take care of the defensive abilities of some players who still have some shortcomings, such as Cuadrado who can still grow a lot as a full-back.