Chivu was part of the Roma team that was destroyed 7-1 by United last term and he said: "We face the champions of England, who are also among the favourites for the Champions League. "They are now stronger after making important buys. "Cristiano Ronaldo? I say their strength is their team and that there are other players of great value, he is the best and destined to improve in the coming years. "The 7-1 with Roma? I have already said then and repeat now, I do not want to ever speak about that. It was a far too ugly an experience."