Team Santina will be back in Singapore looking to defend their title in October
Reigning champion Serena Williams is highly motivated to win her first major title since the 2015 Wimbledon.
Coach calls Murray's hiring of Mauresmo both "strange" and "courageous."
World No. 8 may also partner Wawrinka in mixed doubles.
"Is (Djokovic) beatable? Yes, of course he is. I beat him last year three times,” Federer says in new interview.
Tennis strings and tennis stars come together to make music.
"Obviously, the (Wimbledon) quarterfinals isn't what I want. I want more," Keys said.
