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Boca Juniors' Juan Manuel Martinez kicks the ball past Sebastian Peratta, goalkeeper of Quilmes, during an Argentina's league socc Boca Juniors' Juan Manuel Martinez reacts after scoring against Colon during an Argentina's league soccer match in Buenos Aires, A Argentina's Juan Manuel Martinez, left, and Brazil's Fred go for a header during a friendly soccer match in Buenos Aires, Argentin Francisco Kjolseth | The Salt Lake Tribune New RSL Designated Player Juan Manuel Martinez, nicknamed 'El Burrito,' is unveiled to Argentina's Boca Juniors Juan Manuel Martinez fights for the ball with Arturo Aquino of Paraguay's Capiata during a Copa Sudameric Francisco Kjolseth | The Salt Lake Tribune New RSL Designated Player Juan Manuel Martinez, nicknamed 'El Burrito,' is unveiled to Real Salt Lake's Juan Manuel Martinez, left, moves the ball past L.A. Galaxy's Robbie Rogers during the first half of an MLS socce Real Salt Lake's Juan Manuel Martinez, left, looks to pass the ball past Seattle Sounders' Cristian Roldan (7) during the first ha Michael Mangum | Special to the Tribune Colorado Rapids midfielder Sam Cronin (6) pursues Real Salt Lake forward Juan Manuel Ma