United's famous old ground has been called Old Trafford for 114 years but changing its name could be a contentious issue for fans. More recently, however, Arsenal and Manchester City have taken on lucrative naming rights contracts - such as the Emirates and the Etihad respectively. This brings in both teams tens of millions of pounds each year, particularly as the airlines have not only acquired the rights to the stadium's name but also front-of-shirt sponsorship. Changing the name of the stadium could be better for fans' pockets than a rise in ticket prices, too.