what pro sports even does this? american sports don't because they're complete isolated circlejerks played by nobody else on the planet - safe spaces so to speak (the funny thing is that in niggerball and handegg the talents are in fact "homegrown" like fucking race horses). football ("soccer") literally requires you to have the proper nationality to play on a team, so while poaching is mostly limited to abusing your existing dual-citizenships. club soccer on the other hand is the opposite extreme, so thoroughly international that people barely even care what nationality a club technically belongs to. nobody thinks real madrid winning a cl is a "victory for spain". dumbass chinkoid nerd probably never watched a sport in his life.
Germany