Tennis: Caroline Wozniacki

Denmark's Caroline Wozniacki laughs as she holds a press conference after withdrawing from the WTA Championships semi-final tennis match against Serena Williams of the US at the Khalifa International Tennis and Squash Complex in Doha on October 31, 2009. Wozniacki was forced to retire with a stomach injury at the start of the second set. AFP PHOTO/KARIM JAAFAR (Photo credit should read KARIM JAAFAR/AFP/Getty Images)