it shouldnt matter that warburton is a clean player, or that it was a semi final nor that it was only 18 minutes into the match. he picked clerc up turned him around and dropped him on his head. thats a dangerous dangerous tackle. and at the end of the day, alan rolland is the ref and it was his decision to make. many refs would take the easy way out and give him ayellow and leave the citing commisioner to deal with it but roland made a brave decision. as i was always told as a young boy: the referee is always right even when he's wrong.