Great match by del Potro today. He did so many things well, but especially on the mental front. Thiem lacked experience and the ability to stay in the moment and play his game. He seemed to think that he was supposed to beat del Potro; a recipe for disaster. Thiem still doesn't have the experience that these guys possess, he needs to continue to play his game, ignore the hype, and continue to make his career a work in progress, or he can just look at Dmitrov who tried to fulfill the hype.