Juventus defender Giorgio Chiellini admits he's not at his best at left-back.

Italy coach Cesare Prandelli is playing Chiellini in the unfamiliar role.

"We can use many systems and the decision is down to the Coach. I can play down the left, but I'm hardly Roberto Carlos. I'm still Giorgio Chiellini.

"On Sunday we begin the Confederations Cup, an important tournament we want to do well in, especially in an atmosphere like Brazil."