A trailblazing baseball player is making more history on the diamond.

KCBS Radio's Mike DeWald reports pitcher Kelsie Whitmore this week made her Oakland Ballers debut.

<p>A trailblazing baseball player is making more history on the diamond.</p>
<p>KCBS Radio's Mike DeWald reports pitcher Kelsie Whitmore this week made her Oakland Ballers debut.</p>

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