|M. Etxeberria||10||0||74||No Club|
|I. Kovacs||10||0||73||No Club|
|S. Nakamura||10||0||72||Jubilo Iwata|
|J. Campos||10||0||71||No Club|
|B. Nivet||10||0||71||ESTAC Troyes|
|A. De Jong||10||0||59||No Club|
|B. Singh||10||0||58||No Club|
|R. Cretaro||10||40.000||57||Sligo Rovers|
|Ryan Yong Gi||10||50.000||58||Vegalta Sendai|
|K. Brennan||10||60.000||60||St. Patrick’s Athletic|
From this list the names don't sound (at least not to me), but they all play with Jersey Number 10. So it's clear that the Jersey Number has no influence on your value as a player. However, playing for an important club in the Top 10 does allow the Jersey Number to influence your value. Or is it the other way around? Does the high value player choose his Jersey Number? Then it is only the personal influence of the player, less than the influence of the Jersey Number, that actually influences the value of the player. Playing with Jersey Number 10 for a club such as VVV Venlo is not equal to a value of 118,500,000 as Neymar Jr has.
And making a list based on the calculated correlations with the Spearman method (the dataset has large outliers, hence the Spearman method), shows that there is almost no correlation (SAP's association) between a player's value and his Jersey number:
|Jersey Number||– 0.1779670|
With this, Jersey Numbers are often also linked to the position on the field, so suggesting that there is a relationship between Jersey Number and value is rather odd. Although players in the football industry have recently been increasingly exposed to branding and merchandise, they prefer to keep their Jersey Numbers the same even when they change clubs. So a player's personal influence over his Jersey Number is only increasing, but only to the point where the CLUB actually thinks the player is valuable enough to obtain his favourite Jersey Number.
Based on SAC Smart Discovery's graph, there are many more things I could analyse to prove the "accuracy" of the graph provided. Although with this start I think I made an honest point by not always believing what you see at first sight...