Last Updated: Thu, 11 Apr 2013 15:20
Antonio Valencia has said Manchester United are "worried" about the potential for blowing away their advantage at the top of the table.
Manchester City's win at Old Trafford on Monday has kept alive their slim hopes of retaining the title.
It would still require a staggering sequence of results for United to lose their advantage.
After all, three wins and a draw from their final seven games would be enough, and three of those remaining matches are at Old Trafford, with relegation-threatened Aston Villa and a Swansea side seemingly cruising towards the end of the season amongst the visitors.
Nevertheless, the memory of how United managed to lose the title from a seemingly impregnable position last term has injected an element of insecurity.
"We're a little worried," Valencia told Ecuadorian radio station Sonorama.
"Last year, we were eight points with six games to go and we lost the league. Now it is 12 games and seven points, and we don't want it to happen again."
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