Rafa has a draw that is as tough as hell. It's not that he can't win those matches... it's the cumulative effect it's going to take on him prior to a probable semi final clash with Novak Djokovic. Fog always gives Nadal a match (however unfit - he played him tough in the second set in Barca), Thiem is a future Roland Garros champion, Tsonga will make him work (although Rafa should prevail), and then he faces Novak. It's Novak's best opportunity to win Roland Garros.