"Now she will come into the locker room and OK, now we're going to Louis Vuitton and buy two bags. I have to buy them because I said that."
Radwanska owes her sister a handbag after beating Sharapova
Agnieszka Radwanska on the promise she made to sister Urszula if she beat Maria Sharapova
"It was not so nice a dog because it was a danger dog. It bit my sister twice, so that's why no dog anymore. And I don't like cats."
Radwanska on why she doesn't have a dog anymore. She now has two rats called Flippy and Floppy
"I'm looking forward to next year."
Maria Sharapova chooses to forget her disappointing season
"He's supposed to be dangerous - and he is."
Roger Federer on 6ft 9ins John Isner
"That was by far the most fun I've had playing a tennis match. The feeling of beating Roger Federer in a set, it was crazy."
Isner after taking the first set from Federer before losing in four
"My mum texted me. She said, 'Watch out'."
Martina Hingis fails to heed her mum's warning as she crashes out to Victoria Azarenka
"I felt better today. I felt a little bit more confidence in the knees."
Rafael Nadal finds inspiration in his aching joints ahead of facing Jo-Wilfried Tsonga
"I would rather have done better, obviously."
Andy Murray states the, er... obvious after his loss to Hyung-Taik Lee.
"It's been seven years since I've been in the round-of-16 - I've been married and I have children."
A lot of changed for Murray's conqueror Hyung-Taik Lee since his last US Open fourth round appearance.