"We're facing a very strong team, one of the best in Europe, not only now but also in recent years," Chivu told Sky Sports Italia on Tuesday.
“They have invested heavily, have consistency and a clear playing identity, and have players who can make things difficult for us.”
Inter are sixth in the Champions League table heading into the penultimate matchday of the league season.
They are six points behind Arsenal, who are still unbeaten and have not dropped a single point in the competition this season.
Mikel Arteta's team also performed solidly in Europe, conceding only one goal.
