.World No. 1 Jannik Sinner stays away from revocation after checking good for disallowed compound Yahoo SportsTennis world No 1 Jannik Sinner won't be actually hung down after examining favorable for steroid twice, ITIA claims Fox NewsATP claim on Jannik Criminal ATP TourWorld No. 1 Jannik Evildoer Won't Face Revocation After Stopping Working 2 Tests for PEDs Bleacher Document.