The father of Australian tennis player Bernard Tomic has been indefinitely banned from all tournaments as he faces charges of assaulting his son\'s practice partner, governing body the ATP announced on Tuesday. John Tomic claimed in a court appearance in Madrid on Monday that he had acted in self-defence when he headbutted Thomas Drouet shortly after their arrival in the Spanish capital for a Masters Series event. He denies a charge of assault. \"Following last week\'s incident in Madrid concerning John Tomic, and the ensuing investigation, Mr Tomic\'s credential privileges have been suspended at all ATP tournaments until further notice,\" read an ATP statement released on Tuesday. \"The ATP\'s investigation into this incident remains ongoing.\" From: AFP