Marcello Lippi feels Juventus' Super Cup defeat will work in their favour.
Juve lost to Napoli in Qatar this month.
"Now they'll be hungrier. The Supercoppa will not have a negative effect, it will only be positive," said Lippi.
"The Bianconeri will be back with even more anger, desire and determination after the disappointment in Doha.
"I know them well, [Gianluigi] Buffon and his teammates, and they'll have twice as much ferocity now.
"Juve finished the year top, and with Champions League qualification secured. Twice they took the lead in the Supercoppa, and had one hand on the trophy.
"Losing a trophy on penalties hurts, but it doesn't indicate a problem."