Rafa revealed: In his new book, Nadal discusses his parents' divorce that

Rafa revealed: In his new book, Nadal discusses his parents' divorce that, along with aching knees, might have been a factor in his decision to skip Wimbledon two years ago.

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"I never talk about my personal things in the press, all the changes in your life need a little bit of time," Nadal said.

"After a little bit of time I was perfect, but at the beginning it's tough. I'm not the only one who has parents divorcing in one moment of my life. Only thing is that in Mallorca the family is very important. So any change in this part, these people close to you, affects you, no? That's happened. That's past."

4. Murray feeling fresh: Murray, who lost in last year's third round here, acknowledged that he came into that U.S. Open a tad tired.

"I felt like even from the start I didn't feel all that fresh," Murray said. "I was playing OK, but I also had a relatively bad sort of tendinitis in my wrist. I was struggling to hit my backhand.

"This year I have made quite a big thing of getting ready for the Slams and making sure I'm at my best physical condition going into them. I have prepared very, very well."