This chord diagram looks at which professional soccer leagues rostered World Cup players are in currently in anticipation of the 2018 FIFA World Cup.

The English Premier League comes to mind as one of the most successful, wealthy, and competitive leagues in the world, but is it backed by the amount of players participating in the World Cup?

Taking a look at the chord diagram below, it shows that, unsurprisingly, 5 European leagues (as well as their lower tiers) dominate the rest: the English Premier League (with 123 players represented), the Italian Serie A (with 55 players represented), Spanish La Liga (with 81 players represented), Ligue One (with 53 players represented), and the German Bundesliga (with 52 players represented)

Other notes: