"I'm angry, but no team is capable of winning all the time".
"I will be back soon as always, living my profession with the dedication that has led me to achieve a solid career and many successes".
"Seven points seems like a huge gap to second place [and Roma], but it isn't", Allegri told a pre-match news conference ahead of Sunday's trip to Genoa.
But Lucas Ocampos was quick to the rebound and when Buffon stopped the ball again, Simeone pounced to beat the 'keeper at the second time of asking.
Ten minutes later, Moroccan defender Medhi Benatia allowed Simeone to run in unhindered and direct a diving header past Buffon from Darko Lazovic's pinpoint delivery.
Miralem Pjanic netted a fine consolation free-kick with eight minutes remaining, but the reigning champions were ultimately undone by their awful start as they fell to their third league defeat of 2016-17.
The Bosnian striker reached 12 league goals for 2016-17 with a quickfire early brace before Ledian Memushaj made it a contest after half-time.
A corner came to Luca Rigoni and Alex Sandro tried to keep out his volley but only succeeded in turning it into his own net.
Edin Dzeko scored twice but Roma needed a third goal from Diego Perotti to survive a Pescara comeback and triumph 3-2 in the capital. Juventus are still sitting on the table at first position with 33 points but this loss has opened the door for fellow rivals like Roma and AC Milan who both sit second and third on 29 points.
Sergej Milinkovic-Savic tapped in Dusan Basta's cross from close range to give Lazio a 1-0 win at Palermo and hand the Sicilians a seventh straight defeat.
Goals from Diego Farias and Marco Sau cancelled out Seko Fofana's 51st minute strike, as Cagliari claimed a 2-1 win over Udinese.
Juve could be without any of their "BBC" defence - composed of Andrea Barzagli, Bonucci and Giorgio Chiellini - when they host high-flying Atalanta in Turin next Saturday.