.Globe No. 1 Jannik Criminal steers clear of revocation after checking positive for prohibited material Yahoo SportsTennis globe No 1 Jannik Sinner will not be hung down after testing favorable for steroid two times, ITIA states Fox NewsATP declaration on Jannik Sinner ATP TourWorld No. 1 Jannik Sinner Won't Face Revocation After Neglecting 2 Tests for PEDs Bleacher Record.