THE RUMOR: The White Sox are discussing a potential trade to acquire Padres ace James Shields.
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DETAILS: The White Sox still hold a tenuous lead in the American League Central, but they had lost four straight entering Saturday's battle against the Royals. Pitching, which started out as a positive for the club this season, has started to regress.
The Padres, on the other hand, are 9 1/2 games behind Giants in the National League West, so they might already be in a seller's market.