The biannual brawl known as El Clásico has always been devoid of a U.S. connection, though, with players of grand skill from Spain and the expanse of Europe, from Latin America and Africa. Americans were bystanders.

This weekend, however, the dynamic changes. For the first time since the inaugural clash at a horse track in Madrid in 1902, a U.S. national team player could take part, if not as a starter then as a possible substitute.

His name is Sergiño Dest. He will turn 20 on Election Day. He is a Barcelona defender who can play on either flank.