He was interviewed about it on TV after his round. He did not apologize but did say he thought it was no big deal and if he had made a mess that would have affected another player, he would have cleaned the cup. Not exactly the best answer.

Personally, if I was playing with someone who did that during a round, I would be outraged. Etiquette is a huge part of this game and spitting in general, not to mention the cup, is rude if nothing else.

Will this be another "Paul Casey" situation? Doubt it.