Giants-Cubs playoff history: How the 1989 NLCS was won – East Bay Times
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Cubs and Topps partner for exclusive 82-card set, by MLB.com/blogs
Shawon Dunston and Ryne Sandberg of the Chicago Cubs Editorial Stock Image - Image of sandberg, dunston: 73480019
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1989 Cubs Historical Heroes and Goats: Part 14 - Bleed Cubbie Blue
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Ryne Sandberg Price List - Supercollector Catalog
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