P.S.  I was talking about Cambiaso's son, of course.  I didn't start playing polo until much later.  As it turned out, my father raised me to ride Western style, but I ended up riding mostly bareback, which I much preferred.   Much more fun.  Even so, I got bored with riding when I was about fifteen, and I wanted to build a polo field on our property to make it more exciting.   But my dad bought a herd of cows instead, and they completely ruined all the grass and any possibility of polo.  I have never liked cows since.  Hahaha

I started riding at three, but playing polo at four years old and actually hitting the ball is pretty impressive.  Most Argentine kids do not start until they are nine years old or so.  There's a video provided by one of our members showing 9-15 year old Argentinos playing full out.  I'll see if I can find it and send it to you.