Players are still angry over the shortness of Maria Sharapova's drug ban, according to former Aussie tennis star Jelena Dokic.
Dokic said players were meticulous over what they put in their bodies, and there was no excuse for the failed Sharapova drug test which the Russian superstar put down to tardiness.
Writing in the Sydney Telegraph, Dokic said Sharapova remained a mystery to the "vast majority" of players on the circuit.
"She doesn't want to be friends with the girls on tour. She's tough like that," Dokic writes, in a column tagged 'Why Maria Sharapova has no friends on tour'.
Sharapova served a 15-month banned for using meldonium during the 2016 Australian Open but received a terrific reception from the crowd on her return to the tournament this week.