Manchester City goalkeeper Joe Hart has admitted that his side can feel the pressure of their United rivals in the race for the league title.
Joe Hart's side only lead Manchester United on goal difference after being held to a goalless draw by West Brom at the Hawthorns on Boxing Day.
England international Hart said: "Of course we feel the pressure, "We're the team to beat and we're enjoying that but it's not always going to be as easy as we've sometimes made it look in the past."
As Hart and his fellow teammates were being frustrated by West Brom, their City rivals were beating Wigan 5-0 at Old Trafford to join Roberto Mancini's side on 45 points.
Manchester City face an away trip to Sunderland next in the Premier league on New Years Day, while United face Blackburn at Old Trafford the day before.