.World No. 1 Jannik Sinner steers clear of suspension after assessing positive for banned drug Yahoo SportsTennis planet No 1 Jannik Sinner will not be actually hung down after checking favorable for steroid twice, ITIA says Fox NewsATP statement on Jannik Sinner ATP TourWorld No. 1 Jannik Criminal Won't Skin Suspension After Failing 2 Exams for PEDs Bleacher Document.