AS Roma forward Edin Dzeko can’t explain why they can’t repeat their performances in Europe domestically this season
Eusebio Di Francesco’s side have only won four of their opening 11 Serie A games this season and already trail leaders Juventus by 15 points.
However, while Roma struggle down in ninth-place in the league table, the Champions League has been a different story altogether.
Despite an opening day defeat to Real Madrid, Roma have won their past two games with eight unanswered goals scored in the process.
“It’s difficult to explain the difference in form,” Dzeko told reporters on the club website.
“In the Champions League last year we did really well, and even this year – only in Madrid did we fail to play our game. Overall, however, we’ve been consistent.”
He added: “Maybe it’s because in Europe there are only a few games and every one you need to give everything you have.
“But clearly in Serie A we need to do that as well. Sometimes in Serie, against the teams we have dropped points against like Bologna, Chievo and SPAL, you think we should win easily.
“But we know it’s a tough league, a tactical level, and you always have to be at your very best to win games.”
Roma will face CSKA Moscow in Group G of the Champions League on Wednesday looking to hold on to second spot at the Russian capital.