Juventus goalkeeper Gigi Buffon admits he's been surprised by the strength of their defence this season.

Buffon has paid tribute to the defensive qualities of leaders Juventus.

"I've conceded just once in the last seven games and just 15 in the 31 games I've played," the goalkeeper stated after the 4-0 win over Roma.

"It's never happened before, not even in the years when we dominated as a side. The defensive solidarity is the platform on which we've built our successes."