At present , there are no WTA Tour rules which directly prohibit grunting . Agnieszka Radwanska has criticized Maria Sharapova for screaming during matches . World No . 4 Sharapova has defended the noises , saying they are not against the rules . The WTA is attempting to coach grunting out of the next generation of talent . Victoria Duval 's screams were heard by the crowd at the Australian Open .
Agnieszka Radwanska has criticized Maria Sharapova for screaming during matches . World No . 4 Sharapova has defended the noises , saying they are not against the rules . The WTA is attempting to coach grunting out of the next generation of talent . Victoria Duval 's screams were heard by the crowd at the Australian Open .