The anthem singer who performed the Canadian anthem prior to the 4 Nations Face-Off championship game changed a lyric in “O Canada” from “in all of us command” to “that only us command.”.

American fans lightly booed the Canadian national anthem and roared out their own Thursday night before the championship game of the 4 Nations Face-Off, a matchup between the United States and Canada that has taken on collateral importance in the wake of cross-border political animosity.