Opening 25-year-old baseball cards with D-backs owner Ken Kendrick

Ken Kendrick

has what is perhaps the greatest baseball-card collection in the world.

Kendrick is part owner of the Arizona Diamondbacks and serves as their day-to-day managing general partner. But that's only partially what makes him a fascinating baseball figure. The other part is the baseball cards. The centerpiece of his collection is the famous Honus Wagner T-206, the most sought-after baseball card there is, for which Kendrick paid $2.8 million.

[Elsewhere: The fascinating story of the world’s most famous baseball card]

His collection is so vast, that it's currently on display at the Phoenix Art Museum — including famous (and very expensive) cards featuring Willie Mays and Mickey Mantle. There's a list of the 20 most valuable cards in the world and Kendrick owns 16 of them, with his eyes set on acquiring the other four.

(Yahoo Sports)
(Yahoo Sports)

So when I marched into the Phoenix Art Museum with my box of 1991 Score, full of packs that haven't been opened in 25 years, I was happy to see Kendrick's eyes light up. Not because there's any great value to the cards, but because any baseball collector enjoys ripping into a pack. Even if there's nary a famous rookie card to be found inside, the thrill is still there.

Lucky for all of us, Kendrick agreed to open some 25-year-old cards. We didn't find anything remotely close to a museum-worthy card, but we still found some great stories — including one '90s player Kendrick currently employs and one player he counts as a friend.

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Mike Oz is the editor of Big League Stew on Yahoo Sports. Have a tip? Email him at or follow him on Twitter!