The start of the 2013/2014 Premier League football season is almost upon us. In Saturday's most mouth-watering fixture, Manchester United will begin the defence of their title at the Liberty Stadium against Swansea in the early evening kick-off. After dominating the Premier League last season, United will go into the new campaign full of confidence anticipating further good performances. However, a poor pre season campaign for David Moyes' team and the growing stature of rival clubs poses the opportunity for a hotly contested title campaign. It is therefore paramount that United get off to the best possible start on Saturday to instantly put pressure on their rivals. They go into the game against Swansea as clear favourites, however the match will not be a walkover! There are numerous areas where the game will be won and lost and I've picked out what I think will be the 5 key battles taking place. Click 'Next' to start!