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(KSDK Sports) -- With the realization last week that Chris Carpenter will not be leading the 2013 rotation, Rookies Trevor Rosenthal, Joe Kelly and Shelby Miller will soon find themselves auditioning for a spot in the starting rotation.

When you take Carpenter out of the rotation equation, which is already minus free agent Kyle Lohse, the success of one or even two of these "young guns" will be even more important.

Today in Jupiter, pitchers and catchers are officially reporting to work. Among the first to arrive was pitcher Trevor Rosenthal, who sat down with Sports Director Rene Knott.

Click the video link to view our interview.