Roy Oswalt lends expertise as guest instructor for Astros
Astros Baseball
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Deals Of Days Past: Your Astros Trade History Primer - SB Nation
Roy Oswalt to serve as guest instructor in Astros spring training
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Roy Oswalt lends expertise as Astros' guest instructor
Roy Oswalt lends expertise as guest instructor for Astros
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Roy Oswalt to serve as guest instructor in Astros spring training
