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MLB's steroid era ground zero was Oakland A's clubhouse
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Bay Bridge Series: SF Giants', Oakland Athletics' top rivalry moments
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1987 Topps #366 Mark McGwire Baseball Card - 1st Card in an Oakland Athletics Jersey : Collectibles & Fine Art
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Mark Mcgwire #12 - 90 Post Cereal First Collector Series Oakland A's
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The Big 5 — A Rundown of Major Mark McGwire Rookie Cards – Wax Pack Gods
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Mark McGwire Highlight Reel, Happy birthday, Big Mac! 🎉, By Oakland Athletics Highlights
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1985 Topps Mark McGwire #401 PSA 7 NM Rookie Card RC Oakland As 314
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Top Mark McGwire Baseball Cards, Rookies, Autographs, Minors
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