The number of American players in Europe seems to grow every transfer window, and the likes of Christian Pulisic, and most recently Matthew Hoppe, have demonstrated that you don't necessarily need to come up through a powerhouse MLS academy like FC Dallas in order to make the jump.
However, there are plenty of European-based stars who got their start in MLS (think Weston McKennie, Tyler Adams and Brenden Aaronson), with more surely on the way. So with the help of sources within the league and our scouting expert Tor-Kristian Karlsen, we break down the names you should familiarize yourself with as well as what makes them so attractive to European clubs.