I'm not sure. I know he said in the post-round interview that he had 87 yards and dropped a couple yards behind that. I was wondering if that was legal according to the rules, but decided I didn't know. And the announcer (might have been Feherety) didn't know either ... he got the options mixed up when he was discussing red and yellow markings, then corrected himself (I think).
Is the drop a point of contention this morning? I don't even know if he'd be disqualified or assessed a penalty if the drop was incorrect. But the rule, whatever it is, should be enforced, just like the slow play rule was enforced on the Chinese kid.