Felipe Melo insists he'll live up to his huge price-tag at Juventus.

The former Fiorentina midfielder has been lambasted for this poor form since his summer arrival.

"I never thought for one second about how much the club spent for me, but after this not terribly positive period I really want to prove they didn't make a mistake in paying Fiorentina that sum.

"I was just tired and needed rest, but now I am fired up again and raring to go," he told La Stampa newspaper.

"I haven't the slightest intention of leaving Juventus."