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Norway's Thomas Ulsrud releases the rock during the men's curling competition against Russia at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E) ( APTOPIX Sochi Olympics Curling Men )

(EDITORS NOTE: Image was created using a variable planed lens) Team USA competes in the men's round robin session against Germany during day four of the Sochi 2014 Winter Olympics at Ice Cube Curling Center on February 11, 2014 in Sochi, Russia. (Photo by Streeter Lecka/Getty Images) ( 468665807 )

Payers clear the way for the stone during the women's curling round robin session 2 at the Ice Cube curling centre in Sochi on February 11, 2014 during the 2014 Sochi winter Olympics. (JONATHAN NACKSTRAND/AFP/Getty Images) ( 526914109 )

Russia's Margarita Fomina, far right, kisses teammate Alexandra Saitova, while skip Anna Sidorova and Ekaterina Galkin hug at left, after defeating the United States during women's curling competition at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Robert F. Bukaty) ( Sochi Olympics Curling Women )

Canada's Ryan Fry watches his stone during the men's curling round robin session 3 match between Sweden and Canada at the Ice Cube curling centre in Sochi on February 11, 2014 during the 2014 Sochi winter Olympics. (ADRIAN DENNIS/AFP/Getty Images) ( 526922722 )

Team Sweden competes in the men's round robin session against Russia during day four of the Sochi 2014 Winter Olympics at Ice Cube Curling Center on February 11, 2014 in Sochi, Russia. (Photo by Streeter Lecka/Getty Images) ( 468668809 )

Switzerland's skip Marjam Ott, center of lower sheet of ice, delivers the rock during women's curling competition at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. Four games take place simultaneously during the morning, afternoon and evening sessions at the Ice Cube Curling Center. (AP Photo/Robert F. Bukaty) ( Sochi Olympics Curling Women )

Russia's Alexey Stukalskiy throws a stone during the men's curling round robin session 3 match between Russia and Norway at the Ice Cube curling centre in Sochi on February 11, 2014 during the 2014 Sochi winter Olympics. (ADRIAN DENNIS/AFP/Getty Images) ( 526922939 )

(L-R) Teammates John Landsteiner, Jeff Isaacson and Jared Zezel of the USA compete in the men's round robin session against China during day four of the Sochi 2014 Winter Olympics at Ice Cube Curling Center on February 11, 2014 in Sochi, Russia. (Photo by Streeter Lecka/Getty Images) ( 468669213 )

John Shuster, skip of the United States team, reacts as his shot enters the house during men's curling competition against China at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Robert F. Bukaty) ( Sochi Olympics Curling Men )

Erika Brown, skip for the United States, shouts instructions to her teammates during the women's curling competition against Russia at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E) ( Sochi Olympics Curling Women )

Denmark's Helle Simonsen throws the stone during the women's curling round robin session 2 match between Switzerland and Denmark at the Ice Cube curling centre in Sochi on February 11, 2014 during the 2014 Sochi winter Olympics. (JONATHAN NACKSTRAND/AFP/Getty Images) ( 526911667 )

Jialiang Zang of China competes in the men's round robin session against the USA during day four of the Sochi 2014 Winter Olympics at Ice Cube Curling Center on February 11, 2014 in Sochi, Russia. (Photo by Streeter Lecka/Getty Images) ( 468613129 )

Sweden's Niklas Edin (L) reacts after throwing his stone during the men's curling round robin session 3 match between Sweden and Canada at the Ice Cube curling centre in Sochi on February 11, 2014 during the 2014 Sochi winter Olympics. (ADRIAN DENNIS/AFP/Getty Images) ( 526920363 )

Switzerland's Carmen Schaefer, left, and Mirjam Ott discuss their next shot during women's curling competition against Denmark at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Robert F. Bukaty) ( Sochi Olympics Curling Women )

Russia's Alexandra Saitova, foreground, and Ekaterina Galkina, sweep the ice during the women's curling competition against the United States at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E) ( Sochi Olympics Curling Women )

(EDITORS NOTE: Image was created using a variable planed lens) A general view of the action in the men's round robin session during day four of the Sochi 2014 Winter Olympics at Ice Cube Curling Center on February 11, 2014 in Sochi, Russia. (Photo by Streeter Lecka/Getty Images) ( 468604747 )

South Korea's Um Min-ji and Gim Un-Chi start their stopwatches as they time a Switzerland throw during women's curling competition at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Robert F. Bukaty) ( Sochi Olympics Curling Women )

Great Britain's Anna Sloan, left, and Vicki Adams, right, sweep the ice during the women's curling competition against the United States at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E) ( Sochi Olympics Curling Women )

Jessica Shultz of the United States delivers the stone during the women's curling competition against Russia at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E) ( Sochi Olympics Curling Women )

David Murdoch of Great Britain competes in the men's round robin session against Germany during day four of the Sochi 2014 Winter Olympics at Ice Cube Curling Center on February 11, 2014 in Sochi, Russia. (Photo by Streeter Lecka/Getty Images) ( 468612215 )

Great Britain's skip Eve Muirhead delivers the rock during women's curling competition against the United States at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Robert F. Bukaty) ( Sochi Olympics Curling Women )

Russia's Alexei Stukalskiy watches the rock while his teammates Andry Drozdov, left Anexander Kozyrev, right, sweep the ice during the men's curling competition at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E) ( Sochi Olympics Curling Men )

US Debbie McCormick (C) throws the stone during the women's curling round robin session 2 match between Russia and USA at the Ice Cube curling centre in Sochi on February 11, 2014 during the 2014 Sochi winter Olympics. (JONATHAN NACKSTRAND/AFP/Getty Images) ( 526914071 )

South Korea's Shin Mi-sung shouts instructions to her teammates during the women's curling competition against Japan at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E) ( Sochi Olympics Curling Women )

Norway's Torger Nergaard delivers the rock during the men's curling competition against Russia at the 2014 Winter Olympics, Tuesday, Feb. 11, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E) ( Sochi Olympics Curling Men )