Wildcard and comeback mum Kim Clijsters continued her stunning run at the US Open in New York when she knocked out Venus Williams in a dramatic fourth-round showdown.
Kim Clijsters signalled her return to form with a 6-0, 0-6, 6-4 win over the third seed.
Returning to Flushing Meadows for the first time since winning here in 2005, Clijsters counterpunched against one of the game's biggest hitters and handled a blustery wind at Arthur Ashe Stadium to win the match and advance to the quarters.
The loss marks the earliest exit at the Open for Williams since 2004.
Before she left the game to start a family, Clijsters was known as one of the few who could move well enough and hit hard enough to handle the Williams sisters.
Not much seems to have changed.
Clijsters, who hasn't played enough tournaments in her comeback to be ranked, is now two wins away from becoming the first unseeded player at the US Open final since Williams made it in 1997.
In just her third tournament back after two years away during which time she gave birth to her first child, Clijsters held her nerve to win a topsy-turvy encounter to book her place in the last eight.
"It was unbelievable," a jubilant Clijsters said in a courtside interview.
"I don't really know what to say.
"It was such a weird match.
"After I lost the second set 6-0 I was just like, okay, just start over and fight for every point," added the Belgian.
Rafael Nadal encountered as much trouble from his own body as his opponent in his victory.
The third-seeded Nadal, who missed Wimbledon with sore knees, needed a 10-minute injury break for a trainer to work on his abdominals early in the third set of his 7-5, 6-4, 6-4 victory over No32 Nicolas Almagro.
The stomach injury first cropped up for Nadal last month at a tournament in Cincinnati.
While Nadal laid on the ground to receive treatment, Almagro was laying down to get work done on his back.
The Spaniards popped back up and Nadal finished the work, staying in the hunt to complete his career Grand Slam, though it has yet to be seen what kind of toll this match took on him.