This is really quite fascinating. The use of player data has absolutely exploded in the last decade, and that's now being challenged from a GDPR (i.e. data privacy) point of view.

Some of it could be said to be reasonably innocuous, but when we get into the territory of players being compared against 'expected goals' things start to get tricky, I'd suggest.

Slade's legal team said the fact players receive no payment for the unlicensed use of their data contravenes General Data Protection Regulation (GDPR) rules that were strengthened in 2018.

Under Article 4 of the GDPR, "personal data" refers to a range or identifiable information, such as physical attributes, location data or physiological information.

BBC News understands that an initial 17 major betting, entertainment and data collection firms have been targeted, but Slade's Global Sports Data and Technology Group has highlighted more than 150 targets it believes have misused data.

[...]

Former Wales international Dave Edwards, one the players behind the move, said it was a chance for players to take more control of the way information about them is used.

Having seen how data has become a staple part of the modern game, he believes players rights to how information about them is used should be at the forefront of any future use.

"The more I've looked into it and you see how our data is used, the amount of channels its passed through, all the different organisations which use it, I feel as a player we should have a say on who is allowed to use it," he said.

Source: Footballers demand compensation over 'data misuse' | BBC News