Manchester United don't go into many games at Old Trafford as the underdogs, but they may well be just that as they play host to Chelsea this Sunday afternoon.
The Red Devils have struggled to adapt to life under Dutch coach Louis van Gaal, and are already way off the pace at the top of the Premier League. In fact, United trail Chelsea by a huge 10 points after just eight games.
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Chelsea, however, have been quite formidable so far as Jose Mourinho's side have started this campaign in ruthless form. The Stamford Bridge outfit have secured seven wins from their opening eight fixtures, with the club only dropping points in a 1-1 draw against champions Manchester City at the Etihad in September.
Since then, the Blues have won their last five in a row and even hit Maribor for six in mid week in the Champions League.
United, on the other hand, have won just three of their opening eight league fixtures, and have already been dumped out of the Capital One Cup at the hands of League One outfit MK Dons.
But, ahead of this weekend's clash, should we forget about the form guide? Can Manchester United be the team to put an end to Chelsea's unbeaten start to this campaign?
Perhaps they can. Scroll through the following five pages to see five reasons why Manchester United can beat the Premier League leaders on Sunday...