 Some of the most famous racers are Irineo Leguisamo, Vilmar Sanguinetti, Marina Lezcano, Jorge Valdivieso, Pablo Falero and Jorge Ricardo.The Carlos Gardel's tango Por una cabeza is about horse racing, sport of which he was a known fan.Gardel was a good friend of Irineo Leguisamo, who is the most recognized Argentine jockey.