Martina Hingis scribbled the phrase "All good!" in the comment box on her doping control form at Wimbledon. Six months later, those two words couldn't be further from the truth.

Former world number one Martina Hingis said on Thursday she had tested positive for cocaine during Wimbledon this year and announced her retirement from professional tennis.

PARIS(AP) Martina Hingis won't make a comeback to competitive tennis. The 29-year old Hingis, who retired after getting a two-year ban in 2007 for testing positive for cocaine, said Tuesday in an ...

Since her second return to the game in 2013, Hingis has played women’s doubles and mixed doubles exclusively. Time seems to elude 35-year-old Swiss star Martina Hingis, who turned pro in 1994.

Hingis, 29, who was banned from the tennis circuit for two years in 2008 after testing positive for cocaine, will join other sports stars and various minor celebrities in the seventh series of the ...