Cagliari coach Massimiliano Allegri admits they've suffered a form lapse going into today's clash with Juventus.

But Allegri is confident they will be switched on for their Juve meeting.

"A dip can happen and I'm not entirely surprised, as we pushed so hard for such a long time and amassed a great number of points," said Allegri.

"Perhaps once we hit the objective of safety, we rather switched off mentally. Having said that, 40 points might not even be enough to be secure and we need another three."

Juventus are in crisis at the moment and have lost their last two meetings with Cagliari, including last season in Turin.

"That was a memorable achievement, but tomorrow will be a different game and we have to approach it in the right way," continued Allegri.