Juventus boss Massimiliano Allegri feels their greatest weakness is defending at set-pieces.

Juve meet Fiorentina in the Coppa Italia tonight.

Allegri said: "Almost all of our recent trouble came from free kicks. We've got to work on that, we need to pay greater attention.

"In three different situations we stopped marking our man, so we need to start working in a different way.

"We need a solution that guarantees greater security, because we took 4-5 goals always in the same way and in the same position, aside from that by [Roma's Seydou] Keita on Monday."