You can decide at 17 that you want to be a professional player. In Argentina, they start very young. They go to school in the morning and then do polo in the afternoon.
The best decisions are taken quickly and well. You can prepare yourself, have all aspects of the game thought through, but the one who shines on the pitch is the one with intuition.
In polo, you jump on a horse and you play. To play tennis, you have to train every day. It's your legs that do all the work. In polo, it's the horses' legs.
If you have the right horses and the right team, that's the way to succeed. But you have to work, and you have to improve. Every year, you must get better.