The Brazilian juggled the ball over Amauri on the edge of the area before firing a superb strike past goalkeeper Gianluigi Buffon.

CNN: Maicon and Eto'o put Inter back on top

Amauri was sent off following a goalmouth melee as the game went deep into injury-time with Juve searching in vain for an equalizer.

CNN: Ten-man Juventus ambushed by improving Napoli

In Italy , Juventus moved into third place -- four points behind leaders Inter Milan -- with a 1-0 win at bottom club Siena thanks to a 72nd-minute header from striker Amauri.

CNN: Barcelona return to winning ways with Zaragoza rout