Tweets of the Week: Does Grigor Dimitrov know how to use hashtags?

Friday April 25th, 2014

Grigor Dimitrov might not actually know how to use hashtags, Caroline Wozniacki and Rory McIlroy do some social-media flirting, Novak Djokovic tweets some BIG news and Serena Williams reveals her biggest enemy. Here are the best tweets of the week.




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