LONDON, ENGLAND - JULY 21: Michael Clarke of Australia is struck on the helmet by a delivery from Stuart Broad of England during day four of the 2nd Investec Ashes Test match between England and ... more 
LONDON, ENGLAND - JULY 21: Michael Clarke of Australia is struck on the helmet by a delivery from Stuart Broad of England during day four of the 2nd Investec Ashes Test match between England and Australia at Lord's Cricket Ground on July 21, 2013 in London, England. (Photo by Gareth Copley/Getty Images) less 
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Getty Images | Photo By Gareth Copley / Getty Images
Sun, Jul 21, 2013 9:24 AM EDT