Playing until I'm 40 is definitely a possibility.
To me, that's the brilliance of Michael Jordan. He was an incredible, amazing individual player who matched his talents to the team, matched the team's talents to him, and he lived in the middle of those extremes. I don't know how you do that.
More than specific memories of achievements, for me I remember the feeling you get when you were just at your very best - when you felt like you were floating across the court and could put the ball wherever you wanted.
As an athlete, you only have so much time. The window only has so much time and then it closes. You have to take care of yourself the best you can.
My sole goal when getting ready for a contest was not building a lot of size, although when I was coming up pure muscle size was still very important. I was always really concerned about coming in very sharp conditioning wise.
When you're young, you develop ways to win, and you think they will always work, but then you get to the top, competing against the other top athletes, and sometimes things don't work.
Once I've got my legs under me and I'm fit and healthy, I'm a hard, hard man to beat.
In spring training, I just try to spread everything out so I can be 100 percent before the season starts. I don't want to start feeling like I don't get it once the season starts. I want to be 100 percent on Opening Day.
When I'm fully fit, I have power and pace; then I feel good on the pitch.
I have no doubt in my abilities that I can beat any of the top ten guys. Once I'm focused I know I can beat them.
Obviously, teams start wearing down. But that's kind of when you thrive, when the other team starts to get tired.
I have never been ready 100% even when I was racing in my gold times.
Of course, the best thing, if you play in the Premier League, you can always develop further as a player, and you are playing against the best players. You are also playing game after game all the time, two or three games a week.
When you reach a certain level, you live in a bubble when all you think, dream and breathe is becoming the best athlete in the world.
I feel like the best of the best in any sport not only plays well, but they get everyone around them to play really well, and the best they can.
The last few weeks are always the hardest during any fight camp.
That's what defines the best athletes: being capable of showing up year after year at the highest level.
Just being with some of the best athletes in the world is a marvelous experience.
I just prepare and train to be able to stay on top as long as I can and retire on top.
A typical week of training leading up to a major championship is like the sprinkling of parsley at the end of a dish. It's just the final little touches, that last little bit of strength or fitness, but mostly you are ready and are just maintaining and staying healthy.
Even though I'm 32, I feel like I'm playing my best-ever tennis and like the best years are ahead of me.
There was a time where I was on top of the world, an Olympic hopeful.
It takes a lot of discipline to become and stay champion. It also takes a lot of discipline to stop while still feeling that you're in the best physical and mental shape of your life, but I've always planned to leave the sport when I'm at the top and in good health.
I was fully immersed in the now as an athlete.
That is what great athletes can do: they give us a model of striving for human perfection.
