US Open Day 9 : Nadal's on the way....

Continued US Open 4th round results of Tuesday, Sep. 7th:
Men's singles :
[1] R Nadal (ESP) d [23] F Lopez (ESP) 63 64 64

[8] F Verdasco (ESP) d [10] D Ferrer (ESP) 57 67(8) 63 63 76(4)
[12] M Youzhny (RUS) d T Robredo (ESP) 75 62 46 64
[25] S Wawrinka (SUI) d [20] S Querrey (USA) 76(9) 67(5) 75 46 64