Born in Havana, Cuba, he played one season in Major League Baseball for the Washington Senators in 1945.

He made his major league debut on April 18, 1945, in a road game against the Philadelphia Athletics at Shibe Park.

In his 43 outfield appearances he handled 106 of 109 chances successfully, and his .972 fielding percentage was just a shade below the league average.

Zardón was a member of the 1947 Havana Cubans, considered one of the top teams in minor league history.

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