Tweets of the week: Serena's selfie, Wozniacki celebrates Halloween

Thursday October 30th, 2014

Serena Williams has nightmares, Maria Sharapova makes a case for getting rid of the selfie stick and Caroline Wozniacki and Alexandr Dolgopolov celebrate Halloween. Here are the best dispatches from Twitter this week:

Djokovic takes on Murray's brother Andy in the Paris-Bercy quarterfinals. 

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