Lazio have defeated Juventus in the Coppa Italia semifinals.

Lazio are through to the Coppa Italia Final after a dramatic 2-1 victory over Juventus, as Arturo Vidal thought he'd forced extra time until Sergio Floccari's stoppage-time header.

They will face either AS Roma or Inter Milan in the Final in May.

Alvaro Gonzalez put Lazio 1-0 ahead after halftime with a diving header, before Vidal had the aggregate scores locked up on 91 minutes with a vital equaliser.

But with Juve preparing for extra-time, Floccari's glancing header nestled inside the back post two minutes later to send Lazio to the final and spark home fans into wild celebrations.