City visit Old Trafford looking to close the gap between themselves and United, who lost their first game of the campaign against Wolves last weekend. Nani, though, insists that result was just a blip and is desperate to get back on track against Roberto Mancini's side. He told The Sun: "The defeat at Wolves was an accident. It left pain in the dressing room but one week later we have the chance to return joy to our fans. "A win over City is an obligation. To beat them will put a big distance between us in the title race and also mean we have taken four points off them this season. "I've always been optimistic and insist we are favourites to win the Premier League." One man who stands between them more than most, though, is former United favourite Carlos Tevez, who is now spearheading City's title challenge. "Carlos was our companion and now he is a rival," Nani added, "How do we stop him? By anticipating what he's up to and making sure he never feels comfortable. "For the less he is involved the bigger the advantage for us. We are not obsessed with him but we will make sure we do not give him any chances. "Without doubt Tevez is very important to City. But they have other players who are also big dangers to us."
