With a Coach Who Pulls Teeth to Relax, Iceland Becomes a Contender

Heimir Hallgrimsson coaches the national soccer team of Iceland. With about 330,000 people, Iceland is the smallest nation to ever qualify for the World Cup.REYKJAVIK, Iceland — As the coach of the most successful national soccer team in Icelandic history, Heimir Hallgrimsson has had to make some sacrifices. This year, for instance, he was abroad with the team and could not dress up as his favorite mythological character, Gryla the child-snatching troll, at the Christmas party in Heimaey, his hometown.

Because Gryla’s costume obscures the wearer’s identity, few people realized that Hallgrimsson was for many years the man in the troll suit. “I don’t know who did it this year,” his nephew,…