Around the turn of the century, when Iceland was a punching bag in European soccer and its aspiring young players mostly had to settle for gravel fields, Johann Berg Gudmundsson was a fully fledged England supporter when it was time for the World Cup. His first World Cup memory — as a 7 year old — was David Beckham’s red card against Argentina in the last 16 in 1998. Another vivid memory is Ronaldinho floating a free kick over England goalkeeper David Seaman as Brazil knocked out Gudmundsson’s adopted nation in 2002. At that stage, the prospect of his own country playing on the world’s biggest stage was fanciful. “We’re a nation that has 330,000 living there,” Gudmundsson said. “When I made my debut, I would never have thought I’d play at the World Cup one day.” Here’s how the 2018 FIFA World Cup works. (Published Monday, June 11, 2018) On Saturday, fantasy becomes reality for Gudmundsson and Iceland. Making it even more of a fairytale story is the fact that Iceland’s first ever match at a World Cup is against Lionel Messi and Argentina. “We’ll probably just have a few players run after him the whole game,” he said,…