Wimbledon.com's highlights from the eighth day of play at the 2013 US Open in Flushing Meadows, New York...
Tommy Robredo d. Roger Federer 7-6(3), 6-3, 6-4
It was all wrong. Roger Federer looked completely off balance, out of sorts and not even nearly himself during a strange straight sets defeat to Robredo, the first time the Spaniard had beaten the Swiss in 11 meetings. Federer, playing on Louis Armstrong Stadium for the first time since 2006, hit 43 unforced errors, many of them on his forehand, and converted just two of 16 break points. The result means that for the first time since 2002, he will not feature in at least one Grand Slam singles final during the year. Federer said that he effectively beat himself on the court, saying that he 'self-destructed.' Just as at Wimbledon, the highly-anticipated Roger Federer v Rafael Nadal quarter-final will not happen, meaning that the chances of them ever meeting at the US Open are less and less likely.
Flavia Pennetta d. Simona Halep 6-2, 7-6(3)
Pennetta turned back time to reach her fourth US Open quarter-final, upsetting 21st seed Halep, who had been on something of a tear coming into the US Open, behind only Serena for titles won this year. But Pennetta was emphatic on the return, winning over half of points, and at the net too. Having scorched through the first set, she came back from a break down in the second twice in a row to claim the win in a tie-break, a magnificent backhand down the line to win the match. She will next meet fellow Italian Roberta Vinci for a shot at a first Grand Slam semi-final.
Richard Gasquet d. Milos Raonic 6-7(4), 7-6(4), 2-6, 7-6(9) 7-5
Coming into his fourth round clash against Milos Raonic, Richard Gasquet's record in Grand Slam fourth rounds was won 1, lost 15. You can understand that weighing somewhat heavily on his mind. One of those, was, of course, the famous loss from a two sets and a break lead to Andy Murray in the fourth round at Wimbledon in 2008. Moved to Court 17, the US Open's No.3 Court, because of the rain, Gasquet would have to be at his very best to prevent that record becoming 1-16, taking on the big-serving 10th seed. And, on other days, he would have lost the fourth set tie-break, throwing in the towel as well as throwing his socks (see below). But he snatched it 11-9, saving a match point in the process, to send the match into a deciding fifth set. The whole way through the fifth, Gasquet had break points on the Raonic serve, but could not convert. Until it was 5-5. And he served it out without any dramatics. Not the Gasquet we know. And only his fourth win from two sets to 1 down, first time in a Slam since 2007 Wimbledon against Andy Roddick.
Rafael Nadal d. Philipp Kohlschreiber 6-7(4), 6-4, 6-3, 6-1
As Roger Federer sat bewildered in his post-match press, Rafael Nadal dropped the first set to Philipp Kohlschreiber, playing in a way that resembled both Lukas Rosol and Steve Darcis, in a tie-break. Surely both Federer and Nadal could not exit on the same night? But Nadal gathered himself, changing clothes on several occasions as they melted in the evening heat, and came through in four. All-Spanish quarter-final v Robredo up next. 19 wins on a hard court in 2013, 0 losses. Can he get to 22?
Roberta Vinci d. Camila Giorgi 6-4, 6-2
The all-Italian clash snuck in before the rain came down, with Vinci, 10th seed, taking a knife to Giorgi's hopes of the upset follow-up. Vinci said she was maybe too experienced for her young compatriot, Giorgi said she just didn't play well enough.
The Bryans d. Colin Fleming & Jonny Marray 7-6(7), 6-4
In a tight two-setter, Bob & Mike moved to within two wins of the calendar Grand Slam, beating the plucky British combo of Fleming & Marray. The Brits had two set points in the first set tie-break, but couldn't quite turn the corner against the confident twins. Whatever will we do when they stop playing.
Daniela Hantuchova. She denied American Alison Riske on the final day of the Labor Day holiday weekend, serving out a 6-3, 5-7, 6-2 win. She will play either Victoria Azarenka or Ana Ivanovic in the quarters. The funny thing is, Hantuchova was on a six-match losing streak in Slams, having not gone beyond the first round of a major since the Australian Open 2012. Now she's in her second US Open quarter-final, 11 years after her first.
An old girls' game
Five of the US Open women's quarter-finalists are over the age of 30.
Spare a thought for...
Simona Halep. The rain came down, in torrential fashion, as she had set point to take the second set against Pennetta. Four hours and 21 minutes later, the match resumed with Halep up 40-30, 5-4. Pennetta promptly won three points in a row and got the break back.
Four British men made it through to the men's doubles quarter-finals... Colin Fleming & Jonny Marray, Jamie Murray (playing with Aussie John Peers) and Dominic Inglot (playing with the Philippines Treat Huey).
Stat of the day
American men in the last 16 of the US Open for the first time in the event's 133 year history.
Did-you-see of the day
After losing the first set tie-break against Milos Raonic, Richard Gasquet threw his socks [VIDEO] into the middle of Court 17, and take a seat in his chair, leaving them there. He then collected them.
Feel-good of the day
The story of the wounded warrior who has been a member of the US Open ballperson contingent for the two weeks of this year's US Open.
Quote of the day
Q. How did you manage the three and a half hour rain delay?
ALISON RISKE: I basically just ate and slept for three hours (laughter). I had probably one of everything that they have in the cafeteria (smiling).
Come back tomorrow for
11am - Ana Ivanovic  v Victoria Azarenka 
FB - Ekaterina Makarova  v Li Na 
FB - Novak Djokovic  v Marcel Granollers
7pm - Serena Williams  v Carla Suarez Navarro 
FB - Andy Murray  v Denis Istomin
11am - Jelena Jankovic & Mirjana Lucic-Baroni  v Su-Wei Hsieh & Peng Shuai 
FB - Mikhail Youzhny  v Lleyton Hewitt
FB - Leander Paes & Radek Stepanek  v Aisam-Ul-Haq Qureshi & Jean-Julien Rojer 
FB - Stanislas Wawrinka  v Tomas Berdych 
Court 17, 12pm - Jamie Murray & John Peers v Alexander Peya & Bruno Soares
For all the reports and results from Flushing Meadows, visit the Official US Open website
20:24...But boy, it was a barrow-load of fun. I hope you enjoyed it even half as much as we did. Thank you for all your messages throughout, you've been the glue holding us together as the edges frayed amid the madness. Now if you'll excuse me, it's time for us Brits to raise a toast to Andy Murray and Fred Perry. British sporting legends both.
20:19It was the wackiest of Wimbledons with the most unlikely of headline-makers: Sergiy Stakhovsky, Steve Darcis, Michelle Larcher de Brito, Kimiko-Date Krumm, Jerzy Janowicz, Sabine Lisicki, Marion Bartoli...View all