"In the aggregate, you’d have Dustin [Johnson] and Rory [McIlroy] who are the likely two who could hang with him. Jon Rahm’s still got a lot to learn. His iron play’s not as sharp as it needs to be to be the best player in the world, and it forces him to have to pitch the ball … his pitching, generally speaking, is not as good as it needs to be. And [Jordan] Spieth’s game has fallen off. So it’s really only two players who could challenge him.