Novak Djokovic of Serbia stretches his neck in the men's singles semifinal 

Novak Djokovic of Serbia stretches his neck in the men's singles semifinal match against Tomas Berdych of the Czech Republic at the Shanghai Masters tennis tournament at Qizhong Forest Sports City Tennis Center in Shanghai, China, Saturday Oct. 13, 2012. Djokovic won 6-3, 6-4. (AP Photo/Eugene Hoshiko)
Associated Press
Novak Djokovic of Serbia stretches his neck in the men's singles semifinal match against Tomas Berdych of the Czech Republic at the Shanghai Masters tennis tournament at Qizhong Forest Sports City Tennis Center in Shanghai, China, Saturday Oct. 13, 2012. Djokovic won 6-3, 6-4. (AP Photo/Eugene Hoshiko)
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