Whatever your goal in life, be proud of every day that you are able to work in that direction.
I love hiking in the mountains in Aspen. Breathing the clean, fresh air is great. Plus, it gives me a cardiovascular workout and firms my legs.
Ninety percent of my game is mental. It's my concentration that has gotten me this far.
Not every child is cut out for an individual sport.
Once you've been number one, you can never be satisfied with less.
Of all my achievements in tennis, I'm probably as proud of my record on clay courts as any of my Wimbledon, U.S. Open or French singles titles.