Cristiano Ronaldo's Juventus duck continued but the Bianconeri secured a hard-fought 2-1 victory over Parma on Sunday.
Meanwhile, Portugal captain Ronaldo will skip his country's next two internationals including a Nations League game against Italy in order to focus on his new club Juventus, Italian media reported on Wednesday.More news: China meeting its African colonies
The 33-year-old then at Real Madrid scored twice against his new club including an astonishing overhead-kick in the 3-0 quarter-final win in Turin.
"Italian football presents different problems and it takes time", he said.
"He's not getting the rub of the green at the moment either - the ball is not bouncing right for him or he's shooting just off target".More news: Pentagon cuts off financial aid to Pakistan
Despite the disappointing summer and rocky start to the season, Mourinho has insisted he remains one of the game's greatest managers.
"Cristiano Ronaldo? Well the Serie A isn't an easy league". I don't want to say that it's better than other leagues in Europe or not. We, the coaches make sure our defences are well prepared and no team will gift you anything. "In that match we were really strong and really positive against a very good opponent and we could tell Spurs were finding it hard, but two defensive mistakes in five minutes cost us the game". Here, it's nearly impossible for a player to score 40 goals in one season.
"[Gonzalo] Higuain did it once, but was an extraordinary feat".More news: Steven Gerrard goes after the referee following defeat to Celtic
The five-time Ballon d'Or victor, who lost out to Luka Modric for the UEFA Player of the Year award during the week, drew another blank for a third straight Serie A game on Saturday as he chases his first goal for his new club. And usually the top scorer in Italy never wins the title.