Prince Harry is a great guy, very competitive; he's been playing polo all his life. Riding is in his blood. His grandmother loves horses, his grandfather played polo, his father played polo, his brother plays polo, so it's in his blood. He likes to play hard, we joke about it and it's great.

Charity is another passion of mine and I think it's important to give back. I'm a lucky guy, I've had a great life, I have a great family. I'm very blessed that way, so I believe in giving back a lot.

I also believe that using polo as a platform to give back is a very humble way to position this sport, because people sometimes look at this sport as a little bit snobby. So I love to use polo as a platform to help.

A friend of mine had this idea a few years ago. We thought it would be a great way to promote the sport and to put polo in front of a lot more people in an unexpected place: the romance novel. There's a lot of people that care about those kinds of stories, especially women, and it would help people to know what the polo life is all about. It's not just what you see in the newspapers or on Pretty Woman. There's a lot more to it: the time spent in the barn, how much we love the horses, the relationship with the horses and with the family, etc.

I started playing polo when I was nine years old. I'm from Argentina, so in Argentina polo is more of a common thing. We have a lot of horses and a polo tradition and it's something that goes from generation to generation.

One out of four kids in Lesotho has AIDS, and the idea of the charity is to help the children first fight the stigma of living with HIV and then teach them how to live with it and survive and get an education so all these children can have a normal life. When you're changing the life of so many kids - one out of four is a big number - you change the direction of an entire nation.

The military played polo. Polo, really, started as a game to train for war.