Venue: Melbourne Park Date: 19 January-1 February
Coverage: BBC Red Button, BBC One & Two (including all Andy Murray matches), Radio 5 Live sports extra, BBC Sport website (Red Button coverage streamed on website throughout fortnight)
Serena Williams encountered a surprise visitor on Friday
"I just thought, my eyes, my innocent eyes."
Serena Williams recounts the moment she noticed a male streaker on court during her doubles match on Friday.
"If you want to talk, it's OK with me. I sit and relax."
French star Gael Monfils employs the philosophical approach - and takes a seat - as opponent Nicolas Almagro enters an extended debate with the umpire and match referee.
"I will wake up normal because my eyes will be open at seven or eight o'clock like always with all the adrenaline and all the pressure. So I don't think I'll get a lot of sleep, but I'm not complaining or stuff. I'm just saying it's tough for the players."
Marcos Baghdatis, 'fresh' from a 1.14am finish against Mardy Fish, bemoans his sleep deprivation.
"Slowly I'm winning matches, I'm fighting like an animal."
Baghdatis again, who has been counting wolves rather than sheep.
"I don't know. I'm not in the mood for that."
A disappointed Amelie Mauresmo, beaten by Victoria Azarenka, has no desire to discuss Azarenka's chances against Serena Williams.
"He's a very good player. So complete in all the aspects in the game. He is not the favourite over Nadal or Federer, but, of course, he's one of them."
Fernando Verdasco, who awaits the winner of the tie between Andy Murray and Jurgen Melzer, admits the Scot will give him a tough game.
"My phone was vibrating. It was on, so I tried to turn it off. I got so many messages and phone calls from Israel. None from the Prime Minister yet, but maybe if I win."
Israeli qualifier Dudi Sela explains why he went rummaging in his bag in his four-set defeat by Jo-Wilfried Tsonga.
"Of course I want to win a Grand Slam, but if Gael [Monfils] or Gilles [Simon] win a Grand Slam, I will be happy for them and it will be good for French tennis." Tsonga following his victory over Sela. We don't believe a word of it.
"I probably played my one of my best matches in Australia. I can sleep with a lot of satisfaction." Rafael Nadal following his straight-sets win over Germany's Tommy Haas. He won't sleep as well as Fernando Gonzalez...
"He was playing really a high level. I mean, he was playing like a superhero." Gonzalez after coming back from two sets down to beat Richard Gasquet 12-10 in the fifth set. Unfortunately for Gasquet, even superheroes suffer from sore toes.
"My body is still alive." Gonzalez again. After Nadal's finished with you in the next round, it might not be.