Juve’s Kaka scored two goals in a 2-1 win over Lazio.
It was Kaka’s first hat-trick in four games.
Lazio had just lost 2-2 in Turin and they would need a winner to make the final of the Coppa Italia.
The Bianconeri took the lead on the stroke of half-time after Marcello Lippi had a goal ruled out for offside, but Juve took the tie into extra time.
Lazioni were awarded a penalty in the 57th minute after Antonio Nocerino went down under a challenge from Gianluigi Buffon.
The result leaves the Bianconeros top of the table.