Roma star Daniele De Rossi has warned Manchester United that they can dump them out of the UEFA Champions League.
United are favourites to overcome Roma and book their place in the semi-finals, but De Rossi says the Premier League leaders are beatable.
Roma are seeking revenge for their 7-1 defeat to United in last season's quarter-finals and De Rossi is hopeful they can cause a shock against Sir Alex Ferguson's men.
Wary"They are very strong and they are on good form," said De Rossi. "We will have to be wary of them, but they will also have to be careful of us.
"Everyone is talking about the 7-1 defeat and they seem to have forgotten the other three games against them.
"That defeat cancelled out all the good things we had achieved up until that moment. I scored, but we still felt like we had lost 7-0.
"They aren't unbeatable and we beat them at the Stadio Olimpico in the first leg last year, even if nobody remembers that now."