How to create a ball that rotates when it moves, even if is scaled, squashed or stretched

This is my first tutorial. It's a step by step guide to create a ball and be able to animate it so the ball rotates automatically, even if is changing its size in the animation. The ball can also rotate when its shape is deformed.

I tried to make it very simple, with the necessary explanations where I tought where need it, and it has a lot of pictures. It's easy to understand even for someone who doesn't have a lot of experience with 3ds Max.

I hope you find it useful.