Nick Kyrgios reveals his wrist injury was so bad that he had to "relearn" how to use it after surgery and also shared that one encouraging message from Novak Djokovic triggered his comeback.

The officer’s “strikes were relentless, averaging more than one strike per second,” federal prosecutors in California wrote in a filing.

"The carpal tunnel is located at the wrist, between the bones and tendons. And the medial nerve goes through that. It can ...