The 1998 Upper Deck set includes 751 cards which were released in three series. Subsets for the 1998 Upper Deck baseball cards include Griffey's Hot List (9-18), Define the Game (136-153), Postseason Headliners (415-432), Upper Echelon (451-459), and Eminent Prestige (601-630).
The key rookie cards for this year include #543 Gabe Kapler, #545 Gary Mathews Jr., and #570 Magglio Ordonez.
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