Luciano Moggi says Juventus' stunning victory over Atalanta has rattled Inter Milan boss Jose Mourinho.
The former Juve director was commenting on Mourinho's rant against Roma after Inter's 1-1 draw.
He said: "The fatigue factor advanced by Mourinho fails. They have the same commitments as Juve, Milan, Fiorentina and Roma, which had terrible injuries.
"If Ranieri's team emerged unbeaten from the San Siro it was for undoubted merit, rewarding Ranieri and leaving many questions about the wisdom of Mourinho's tactics demonstrated in the victory in Kiev.
"If we look at the five goals for Juventus in Bergamo, then one understands better his bad mood."