Caprello highlighted his lack of unpredictability and lack of speed for his slump in form.

The under-pressure Spain international has struggled to establish himself since moving to Stamford Bridge for 50 million pounds in January 2011.

Chelsea manager Roberto Di Matteo recently revealed he had considered dropping Torres for Tuesday's vital Champions League game against Juventus, with Daniel Sturridge tipped to take his place as the focal point of their attack.

Capello told Italia 2: "Fernando Torres is slowly losing it. I don't know what is happening because he was very good when Rafael Benitez was the Liverpool manager.

"But he has not found inspiration (at Chelsea) and scored the goals that used to distinguish him. Before, he was unpredicatbale with Liverpool but now defences manage to beat him for speed and this is worrying."

Chelsea's trip to Juventus is important to both sides' chances of progressing, and Capello believes Juve can beating the reigning European Champions.

He added: "Juventus can beat Chelsea, they have to pay attention to the three Blues offensive midfielder.
"(Mirko) Vucinic can make the difference, he's the best Juventus striker but we have to be patient with (Sebastian) Giovinco, he can become like Zola."

The 66-year-old also spoke of about his sudden exit as England coach earlier this year, adding: "The reason I left England was to defend Terry. English people are too moralist - they want people to behave in a certain way, and then they take hasty decisions like that (Terry) who was later acquitted.

"My intention is to end my career when my contract with Russia terminates.

"If there’s an interesting project I could change my plans but nowadays I can't see anything interesting."