SOCHI, Russia -- Sweden secured a third straight win in men's Olympic curling by beating Canada 7-6 on Tuesday, intensifying the early-tournament woes of the gold-medal favorites.

Canada has won the last two Olympic titles but now has lost back-to-back games and was sloppy in its only win so far -- against tournament outsider Germany on Monday.

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Norway, the 2010 silver-medalist, defeated Russia 9-8 to move to 2-0. China and Britain also won in the afternoon session at the Sochi Games' Ice Cube Curling Center.

The United States' 9-4 loss to the Chinese means the American men and women are a combined 0-4. The U.S. women play later against world champion Britain.