Juventus defender Leonardo Bonucci admits Palermo can them close yesterday.
Juve managed a 1-0 win thanks to Daniel Alves' strike.
“This teaches us that we need to improve game by game, as pressing and doing well in one match against Cagliari is not enough," the defender told Sky Sport Italia.
“I compliment Palermo and their Coach Roberto De Zerbi, as they played well and defended well too.
“We have to take the points and two consecutive clean sheets, but cannot think this was the real Juventus."