Fiorentina coach Cesare Prandelli admits he is nervous about facing Liverpool.
The Viola host Liverpool in the UEFA Champions League on Tuesday.
But Prandelli knows Liverpool are heading to the Artemio Franchi in fine form, in particularly Fernando Torres.
"How do you stop him? You must concentrate all the time, and be very lucky because he is so good," said Prandelli.
"We have watched the last three Liverpool games on DVD and we know what a difficult task we face.
"Liverpool are very strong, very talented, but sometimes they are unpredictable. They are a great side, but even great sides give you opportunities."
Prandelli admits that Liverpool's win over Hull sent shockwaves through Florence.
"Liverpool scored six on Saturday and are in very good form, I must admit that when I heard that result it did make me a little more nervous than I was before," he said.
"We have always said that we want to experience the Champions League with enthusiasm, even if that means running a few risks."