有6次機會，但就是沒對決過，包括今年

Roger Federer and Rafael Nadal have been within a match of meeting at the USOpen  6 times, but one of them lost in each instance.

另外，今晚贏費神的del Potro 要在semi 對納豆，他是唯二在同一個GS 都曾擊敗過費納的球員之一，只有一次就是2009美網(那年費納怎了？)另一位今年美網沒參加

He's 1 of only 2 men to beat Federer & Nadal in the same major