Carlos Retegui (born December 19, 1969 in Buenos Aires) is a field hockey defender from Argentina, who is nicknamedChapa. He is a member of the national squad since 1989, and competed in three Summer Olympics, starting in 1996. In the spring of 2006 he was dismissed from the national team by his former teammate and now head coach, Sergio Vigil. December 19 is the 353rd day of the year (354th in leap years) in the Gregorian calendar. ... For the Stargate SG-1 episode, see 1969 (Stargate SG-1). ... For other uses, see Buenos Aires (disambiguation). ... A game of field hockey in progress Field hockey is a popular sport for men and women in many countries around the world. ... // A nickname is a short, clever, cute, derogatory, or otherwise substitute name for a person or things proper name (for example, Bob, Rob, Robbie, Robin, and Bert are possible nicknames for Robert). ... The Argentina national field hockey team represents Argentina in the international field hockey competitions. ... 1989 (MCMLXXXIX) was a common year starting on Sunday of the Gregorian calendar. ... The Summer Olympic Games are an international multi-sport event held every four years, organised by the International Olympic Committee. ... 1996 (MCMXCVI) was a leap year starting on Monday of the Gregorian calendar, and was designated the International Year for the Eradication of Poverty. ... For the Manfred Mann album, see 2006 (album). ... Sergio Vigil (born August 11, 1965 in Buenos Aires) is a former field hockey player from Argentina, who later became a coach in his sport. ...