Del Potro, Nadal, Serena win quarterfinals at U.S. Open; Stephens ousted

Serena!!!

Vamos Delpo!!! Would absolutely love to see him win this title. He's a player that should have been a constant threat to the "Big 4" (or maybe even a member of them), but what could've been a beautiful career has been severely limited by injury after injury. I'd love to see him avenge the missed opportunities by winning another Slam or two.

Nadal began his quarterfinal as poorly as possible, shut out in a set by a 6-0 score for only the fourth time in 282 career Grand Slam matches.

In Nadal's previous matches when he lost a set 0-6, he lost all 3 matches

First time in the Open era that a grand slam quarterfinalist lost a set 0-6 and come back to win the match