According to lawyers of representing athletes, the question is not to find out who by law is the owner of the information. But that even if the data is available for general use, it does not mean that they can be sold.
There is nothing wrong with that you or I do for my own advantage notes on how the player plays. The problem here is that organizations collect all these data on players and then sell them without proper consent, and it is incorrect.
At the moment, it is reported that more than 400 former and existing players joined the project of Project Red Card, and one hundreds of interest are of interest. So in the end, their number can go beyond 1,000.