.Planet No. 1 Jannik Sinner steers clear of revocation after checking good for prohibited drug Yahoo SportsTennis globe No 1 Jannik Sinner will not be hung down after checking favorable for steroid two times, ITIA points out Fox NewsATP claim on Jannik Criminal ATP TourWorld No. 1 Jannik Evildoer Won't Face Suspension After Neglecting 2 Exams for PEDs Bleacher File.