Tennis is not like other sports where the coach is hired by an independent entity, and that makes a huge difference in the dynamic.

I was between 2 and 3 in the world for two, three years. That's not exactly where I wanted to be.

Because in order to beat Jimmy, I had to get around the ball a little bit quicker so I wasn't always on defensive and catching the ball on last stride, that I had little more time. Once I was able to get little bit quicker, then it has helped me a lot.

I got bad calls every match, and I never got an apology. So I thought it was rather strange.

I'm certainly not sorry that there were some things I missed. You may think you're missing something at that time but later when you look at it, you didn't miss anything.

But to be fair, if you take players from my era to now, the game has changed and the players have many more shots. They use them differently than we did. The speed of the game has changed.

My serve and my forehand I pretty much always had, but my backhand was a made backhand. I worked on it for years.