SILKEBORG, Denmark - Chelsea Carey's Canadian rink dropped to 4-5 after a 9-3 loss to Switzerland's Silvana Tirinzoni on Thursday morning at the world women's curling championship.

Switzerland put it away by scoring four in the eighth, breaking open a close game.

The loss dropped Canada into a three-way tie for seventh with Scotland and the United States at the 13-team event. The top six teams after the round-robin make the playoffs.

Reigning Olympic champion Anna Hasselborg of Sweden led the way at 8-1 after the morning draw.

Japan's Seina Nakajima held sixth place at 5-4.

Canada was scheduled to face Russia's Alina Kovaleva (7-2) later Thursday