UPDATE: The Chicago Tribune is confirming the story.
In a surprising move, Enrique Rojas of ESPN Deportes reports that the Cubs have called up top prospect Starlin Castro from AA Tennessee.
The Cubs are obviously in need of an offensive spark, after getting swept by the pitching challenged Pittsburgh Pirates while only scoring 5 runs in the 3-game series. Castro was tearing up AA ball, hitting .376/.421/.569 with 1 HR, 20 RBI's and 20 Runs in 109 AB's.
Castro will likely start at shortstop for the Cubs and push Ryan Theriot to second (with Mike Fontenot going to the bench).
More on this tonight.