The administrator of the Tennis Anti-Doping Programme denied it had sought a four-year ban for the former world number one and, in a statement, rejected suggestions by the Russian that its independent tribunal was "not neutral"
Maria Sharapova has been suspended as a goodwill ambassador by the United Nations after the former world number one admitted she had tested positive for the banned substance meldonium at this year's Australian Open.
Five-times grand slam champion Maria Sharapova is seeking to have her two-year doping ban wiped out or reduced as she lodged an appeal with the Court of Arbitration for Sport (CAS) on Tuesday.
The Court of Arbitration for Sport (CAS) on Tuesday reduced by nine months former world number one tennis player Maria Sharapova's two-year doping ban.
Russian former world number one Maria Sharapova was suspended for two years by the International Tennis Federation on Wednesday following her positive test for banned drug meldonium at this year's Australian Open.
'Sharapova has been a US resident since early in her career, which does bring in a question of how or why she is using a drug that is not licensed there'