Maria Sharapova’s two-year doping ban has been reduced to 15 months following her appeal to the Court of Arbitration for Sport.
The five-time Grand Slam winner, 29, was initially banned by the International Tennis Federation for two years after testing positive for meldonium at the 2016 Australian Open.
The Russian will be able to return to the tennis court on 26 April, 2017.
“I am counting the days until I can return,” she said.
Meldonium, a heart disease drug also known as mildronate, became a banned substance on 1 January 2016.
Sharapova said she had been taking the drug since 2006 for health problems and had “not tried to use a performance-enhancing substance”.
She said she was unaware the drug had been added to the World Anti-Doping Agency’s (WADA) banned list and could not “accept” the “unfairly harsh” ban.
The CAS panel said it found Sharapova’s case “was not about an athlete who cheated”, adding she was not an “intentional doper”.
However, it said Sharapova was at fault for not giving her agent “adequate instructions” about Wada’s prohibited list.
The tribunal ruling said Sharapova tested positive for meldonium after her Australian Open quarter-final defeat by Serena Williams on 26 January and in an out-of-competition test on 2 February.
Cas treated both results as a single anti-doping violation.
Sharapova won the Wimbledon singles title as a 17-year-old in 2004, going on to win the Australian, French and US Opens to complete a career Grand Slam.
However, she has not played professional tennis since losing to 22-time Grand Slam champion Williams.