#4 MLS
Major League Soccer is no longer a place where players nearing their retirement move. It's becoming more and more competitive and the popularity of the league is increasing day-by-day in the United States and other countries.
Wayne Rooney's move to any of the MLS clubs would add a lot more viewers to the competition and make it more 'attractive.' Right now, only players who cross the age of 30 are moving to the MLS and that's a massive cut in the age cap when compared to the players who moved to America a good 5-6 years ago.
Rooney would just walk into the starting XI of New York City FC, LA Galaxy, and New York Red Bulls. Rooney won't be the only top Englishman to be playing there if he moves as Lampard and Gerrard are already playing there.