The Argentinean horses are usually called “petisos” due to their small size. The roughrider “petisero” replace the player outside the polo field. His work consists in preparing the horse to play polo. The young horse is trained to galop, stop easily with his backlegs under his body, and to turn rapidly, which is unnatural for the horse.
The colts are trained between the age of 2 and 4 years old.