At 21, there's lots more room there, plenty of things to improve on as you get older.

Because you can't change results - I would change my losses, and I would definitely like to see on-court coaching.

I did a really good job of sticking to the tennis court.

Sometimes when you're in the storm, it's harder and maybe when it's over, then you can look back on it.

There's always a learning curve, where you've got to learn what your subject is all about.

Twenty years ago, you'd see guys busting rackets in locker rooms. Today they do it in their hotel rooms.

You never know, I might get back into coaching someday.

I remember Agassi playing Federer in Basel, Switzerland in 1998, and Andre was already saying at that time that Federer would be tough. Usually at the time players are 17, you can see if they will be great.

You see Boris Becker, Mats Wilander, Nadal, Pete Sampras - they were all great when they were young. As a coach, you can see that type of talent at an early age.