CINCINNATI (AP) -- The struggling Chicago Cubs called up their top minor league prospect, 20-year-old shortstop Starlin Castro, for the start of a weekend series against the Cincinnati Reds.
Castro makes the jump from Double-A Tennessee. He'll be the youngest Cub to make his big-league debut since Oscar Gamble did it at the age of 19 in 1969. He'll also be the youngest shortstop to make his debut with the Cubs. Castro batted .376 with eight doubles, five triples and one homer in 26 games with Tennessee.
Chicago optioned infielder Chad Tracy to Triple-A Iowa to make room on the roster. Tracy opened the season with the Cubs and batted .273 in 19 games.
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