SOCHI, Russia -- Canada beat rival Britain 9-6 on Wednesday for a third straight win in women's Olympic curling and the U.S lost again to move to the brink of elimination.
The undefeated Canadians joined Switzerland atop the standings with three wins and no losses. Canada earlier scored wins over China and Sweden, two of its other main rivals for gold.
Eve Muirhead's British rink came to the Olympics as the favorite but has lost two of its first three games.
The Americans lost their fourth straight, 7-4 to China, and likely will need to win all five of their remaining round-robin games to stand a chance of reaching the semifinals.
In other matches in the afternoon session, defending champion Sweden beat Korea 7-4 and host nation Russia lost to China 8-4.