In the cool light of day, as he ate some pastry and doodled on a pad, del Potro was just a fresh-faced 20-year-old making sense of his first Grand Slam title.

• 在清凉的阳光下，面带稚气的德尔-波特罗一边吃着甜点，一边在便签纸上信手乱画。这个20岁的年轻小伙，好像刚刚意识到自己捧得了第一个大满贯头衔。