Sweden has joined Canada in the semi-finals of women's Olympic curling, courtesy of its 5-4 win over Russia and Switzerland's extra-end loss to Japan.
The Canadians are guaranteed the top seed in the playoffs after beating the US 7-6 in an extra end for an eighth straight win.
If they beat South Korea on Monday, they will become the first women's team to go through an Olympic round-robin campaign undefeated.
Switzerland's 9-7 loss puts the team at 4-4 and in danger of missing the semi-finals.
The Swiss will have to beat China in their last game to stand a chance of qualifying.
Denmark beat South Korea 7-4 in the afternoon session's other game.