Gabe Perreault scored twice and six other players had a goal as the U.S. routed Latvia 7-2 Tuesday to advance to the semifinals of the IIHF world junior championship. Perreault, the New York Rangers' 2023 first-round pick, also had an assist as part of a dominant game by his line. The Americans' victory came after tournament favorite Canada was knocked out in stunning fashion with a 3-2 quarterfinal loss to Czechia.