Manchester City winger Adam Johnson believes Manchester United remain the biggest threat to their Premier League title aspirations this season.

Manchester United are just two points behind Manchester City despite many citing perceived weaknesses in Sir Alex Ferguson's squad.

Elimination from the Champions League and their chastening defeat to Manchester City has led to some to prematurely predict Manchester United's demise, however Johnson believes

"Without a doubt, United are United - you can never write them off." The Manchester City winger told the Times. "They will always be there or thereabouts and will never give up. There is still a long way to go and people are talking about it being a two-horse race, but a lot can happen in the Premier League."

Although keen to respectively acknowledge the palpable threat posed by defending champions Manchester United, Johnson is bullish about Manchester City's title credentials this season.

"Hopefully we can [move away from the rest]. As long as we are in contention coming towards the end of the season, with our squad we can always have fresh players coming in." The Manchester City and England winger said.

Manchester United face Wigan Athletic at Old Trafford on Boxing Day, while Manchester City travel to West Brom. The two clubs meet in the FA Cup third round at the Etihad at the beginning of next month.