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(KSDK Sports) -- The Cardinals will release their official 2013 World Series roster on Wednesday and when they do, several questions will be answered. One big question involves the use of Shelby Miller.

Miller has not started any postseason games. Instead, the Cardinals held Miller back as their go-to if any of the starters encountered early trouble.

Will that be the case again in the World Series?

Before leaving for Boston, Rene Knott asked general manager John Mozeliak if Miller could have an expanded role against the Red Sox.