Martina Hingis, fresh off her induction into the International Tennis Hall of Fame, will end a nearly six-year retirement to play doubles at next week's Southern California Open, the WTA said on Tuesday. "I am very much looking forward to making a return to competitive play at the Southern California Open," the Swiss former world number one said in a statement on the WTA website. "My competitive spirit is still very much alive and I love being out on court."
