The president of the Russian tennis federation says Maria Sharapova could have her disciplinary hearing for doping in June.

Sharapova has been provisionally suspended and faces a possible ban of up to four years after testing positive for meldonium at the Australian Open in January, though a reduced punishment is possible if she can show she did not intend to cheat.

Shamil Tarpishchev tells the state Tass news agency that "the hearings could be put off until June," adding that was "not official information, but my opinion."

Tarpishchev says he is in regular contact with Sharapova and says she is continuing to train.

Sharapova has said she took meldonium for medical reasons and was not aware it had been banned for 2016.