Olympic champions and hosts Finland will face title holders Canada in Sunday’s final of the world ice hockey championships after they won semi-finals in contrasting fashion. Finland edged the United States 4-3 after falling behind after just 64 seconds from Nate Schmidt, with Joel Armia’s third-period goal for 4-2 giving them the decisive advantage en route to a possible fourth title. Canada can meanwhile dethrone Russia/Soviet Union as record champions if they win a 28th title on Sunday in Tampere, after coasting into the final 6-1 over the Czech Republic in Saturday’s other semi-final. They …