Winter Olympics: day 13

Britain's curlers were in action last night in a play-off match against Sweden ... Photograph: Toshifumi Kitamura/AFP/Getty Images Photograph: Toshifumi Kitamura/guardian.co.uk Euan Byers watches beside Pete Smith as their team make a torrid start to the match with a series of unforced errors Photograph: Toshifumi Kitamura/AFP/Getty Images Photograph: Toshifumi Kitamura/guardian.co.uk Ewan MacDonald brought his team back in contention, levelling the tie at 5-5 before the Swedes edged victory 7-6, knocking Britain out Photograph: Toshifumi Kitamura/AFP/Getty Images Photograph: Toshifumi Kitamura/guardian.co.uk Ireland's Aoife Hoey and Claire Bergin compete in the women's two-man bobsleigh heats. They were placed 17th out of 21 crews, 6.56 seconds off the pace Photograph: Andrew Milligan/PA Photograph: Andrew Milligan/guardian.co.uk Kaillie Humphries and Heather Moyse of Canada were the team to beat, topping three of the four runs to win gold Photograph: Al Bello/Getty Images Photograph: Al Bello/guardian.co.uk And there was double delight for the Canadians as their second crew claimed the silver medal ... pictured, Shelley-Ann Brown cries after realising her achievement. She and Helen Upperton took second place thanks to a stunning fourth run Photograph: Tony Gentile/Reuters Photograph: Tony Gentile/guardian.co.uk Germany's Cathleen Martini might also have shed a tear or two after crashing out of the competition ... her team-mate, Romy Logsch, fell from the back of the bobsleigh during the ill-fated run Photograph: Richard Heathcote/Getty Images Photograph: Richard Heathcote/guardian.co.uk Canada and Russia faced one another in the ice hockey quarter-finals, with the Russians favourites to progress ... pictured above, Roberto Luongo of Canada concedes a goal Photograph: Pool/Getty Images Photograph: Pool/guardian.co.uk But the Canadians battled back and eventually won 7-3 to book a semi-final with Slovakia Photograph: Alex Livesey/Getty Images Photograph: Alex Livesey/guardian.co.uk Meanwhile, USA beat Switzerland 2-0 to secure a final-four tie with Finland Photograph: Tony Marshall/Empics Sport Photograph: Tony Marshall/guardian.co.uk In the speed skating, American Jordan Malone looks dejected after falling during the short track 500m heat Photograph: Jamie Squire/Getty Images Photograph: Jamie Squire/guardian.co.uk In the women's 1,000m heat, Zhou Yang of China leads Aika Klein of Germany, Erika Huszar of Hungary and Paula Bzura of Poland Photograph: Matthew Stockman/Getty Images Photograph: Matthew Stockman/guardian.co.uk Katrin Mattscherodt of Germany competes in the ladies' 5,000m event but is disqualified. Her compatriot Stephanie Beckert took silver behind Martina Sablikova of the Czech Republic Photograph: Streeter Lecka/Getty Images Photograph: Streeter Lecka/guardian.co.uk Australia's Lydia Lassila twists through the sky above Cypress Mountain as the freestyle aerial skiing gets underway. The Australian eventually won gold ahead of China's Li Nina Photograph: Adrian Dennis/AFP/Getty Images Photograph: Adrian Dennis/guardian.co.uk ... while Belarus's Assoli Slivets narrowly missed out on a medal, finishing fourth despite this acrobatic effort Photograph: Adrian Dennis/AFP/Getty Images Photograph: Adrian Dennis/guardian.co.uk