Fiorentina coach Vincenzo Montella was delighted with victory over Juventus.
Giuseppe Rossi struck a hat-trick in the 4-2 win.
"It is certainly among my most enjoyable victories. In the first half it was balanced and Juve made the most of our errors, especially on the second goal," he told Sky Sport Italia after a 4-2 win.
"Juventus didn't allow us spaces through the middle after the break and stopped us raising the tempo. We looked unable to score, but football is marvellous and the penalty changed the inertia of the game.
"We achieved this despite going 2-0 down, despite losing Massimo Ambrosini, despite Rossi having a back problem.
"It's tough to score four goals against Juventus, especially with Antonio Conte in charge, and extraordinarily wonderful to do it in 15 minutes.
"I thank the fans, who behaved impeccably and perhaps at times believed in this result more than we did. I am glad to note there was no crowd trouble either, despite the concerns and rivalry."
