Predicting a winner is difficult because Brazil and Argentina, which have won eight of the past 10 competitions, failed to qualify.
The emerging favorite appears to be Spain, which is looking to add a second Under-20 World Cup to its increasingly crowded trophy cabinet. It already won the Under-19 European championship.
“Spain is probably the favorite to win the whole thing and the fact we can start with Spain is a great opportunity for us and for our players to perform and see where we stand,” Ramos said.
There are six groups of four teams each, with the top two teams advancing along with the four best third-place teams. The elimination stage of the event begins July 2.