Maria Sharapova will learn the result of her appeal against a two-year doping ban on Tuesday afternoon, the Court of Arbitration for Sport has announced.
Five-time grand slam champion Sharapova, 29, admitted in March that she tested positive for meldonium at January's Australian Open.
A two-year ban was imposed by the International Tennis Federation in June, back-dated to January, and she appealed to CAS seeking a reduction.
Sharapova, who won a silver medal at London 2012, was forced to sit out Rio 2016 after the appeal was initially postponed.
A verdict will now be delivered at approximately 2pm on Tuesday, according to a short statement published on CAS's official website.
Sharapova argues that she had been using the Latvian-made heart disease drug under medical advice for a decade and had not realised it had been added to the World Anti-Doping Agency's banned list on 1 January ;2016.
But an ITF disciplinary panel dismissed this explanation, pointing out that meldonium had been on WADA's "watch list" of controversial drugs for over a year and there had been numerous warnings to athletes about it becoming prohibited in late 2015.
