Don’t Let A First-set Victory Lead Into

Now That I'm Losing Some, I Can See How Tough I Was -- The Killer Instinct, The Single-mindedness, Playing Like A Machine. Boy, That's What Made Me A Champion.

Not Every Child Is Cut Out For An Individual Sport.

Ninety Percent Of My Game Is Mental. It's My Concentration That Has Gotten Me This Far. I Won't Even Call A Friend On The Day Of A Match. I'm Scared Of Disrupting My Concentration. I Don't Allow Any Competition With Tennis.

You Pay A Price For Everything In Life.

If You're A Champion, You Have To Have It In Your Heart.