LONDON, ENGLAND - AUGUST 09: Klaas Vermeulen of the Netherlands collides with Glenn Kirkham of Great Britain during the Men's Hockey semi-final match between Great Britain and the Netherlands on Day 13 of the London 2012 Olympic Games at Riverbank Arena Hockey Centre on August 9, 2012 in London, England. Klaas Vermeulen of the Netherlands was carried off the field after colliding with Glenn Kirkham of Great Britain with a supected broken collar bone. (Photo by Daniel Berehulak/Getty Images)
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