Robin Van Persie, former Arsenal striker, sold the most shirts in the 2012-2013 season. The Dutch forward topped Wayne Rooney (2011-2012 top seller), Luis Suarez and Steven Gerrard to take the most sales. His customized V.Persie 20 shirt makes up 25.4% of all sales. This means that 4./10 players on the Premier League top sellers of last season were from Manchester United. This gives massive influence and generates lots of income.
Shinji Kagawa, Manchester United's midfielder, boasts 11.1% of all Manchester United sales. Despite having a season of being on the bench, he still maintains a presence around the world. One of Asia's idol, he is a massive corperate success. Transfers can be bought to generate global presence as well.