Pouille ousts Nadal at the US Open; Tsonga, Monfils advance to the quarterfinals

US OPEN—NEW YORK, NY, U.S.A.

Fourth-round results:

(24) Lucas Pouille DEFEATS (4) Rafael Nadal 61 26 64 36 76(6)
(9) Jo-Wilfried Tsonga DEFEATS (26) Jack Sock 63 63 67(7) 62
(10) Gael Monfils DEFEATS Marcos Baghdatis 63 62 63