I've been joining the data on the FIFA 23 player database, and only about half of the players in the FIFA database are present in the scraped Transfermarkt data. The rest are on Transfermarkt data, but not scraped. These fall into a few different categories:
- Non-European leagues - teams from Brazil, United States, Argentina, Australia, Chile etc.
- Lower level European leagues - there are no teams from League One or lower in England, Ligue 2 or lower in France, LaLiga 2 or lower in Spain etc.
This works out to be about 10,000 players, so it would be great to find a way of incorporating them (if it doesn't make it too unwieldy!)