Juan Nelson
Juan Diego Nelson was an Olympic Argentinian polo player during the first half of the 20th century. He is listed in the Argentinian polo team roster for the 1924 Summer Olympics which won the gold medal that year. In the 1936 Summer Olympics, although he was once again part of the team Nelson is not listed as a medallist; he was the 'non-playing captain' of the team. Nevertheless, it is sometimes implied that Nelson was the first Argentinian to have won two Olympic gold medals. In 2008, Javier Mascherano became the second Argentine to win two Olympic gold medals.
