Sean Casey's enthusiasm for baseball led to collecting cards as a kid. The Tigers first baseman describes that passion during a recent question-and-answer session for MLB.com/cards.

MLBPLAYERS.com: When did you start collecting cards?

Casey: Probably when I was 10 to 12 years old -- 12 was when I really got serious doing it.

MLBPLAYERS.com: Which were the top cards you collected?

Casey: First couple of guys were Will Clark and Wally Joyner. Also Barry Bonds. I liked the rookie cards around 1984-85: Roger Clemens, Kirby Puckett and Don Mattingly's Donruss card. I think I did go after a lot of left-handed hitting first basemen. I probably had hundreds of cards.

MLBPLAYERS.com: Which was your most treasured card?

Casey: Probably the Ken Griffey Jr. Upper Deck rookie card. I bought a box of them when they weren't that expensive. I thought that was pretty cool. It was a good-looking card. Playing with Griff for six years, I always thought it was kind of funny, it being one of my favorite cards.

MLBPLAYERS.com: When did you first appear on a card?

Casey: My first card ever was my 1995 Watertown card. It was cool, almost like a piece of paper -- Watertown Indians, 1995. It was like a team set. It was fine, with me at bat. My first Major League rookie card was 1996 Topps.

MLBPLAYERS.com: Where are the cards now?

Casey: I still have them. My mother-in-law has a lot of them, too. She tries to keep the collection going. She and my sister collect. They try to collect as much as they can. There's so many cards out there. When I first started collecting, it was Topps, Donruss, Fleer and Upper Deck. Now you got so many different varieties. I try to collect my own cards.

MLBPLAYERS.com: Which is your favorite card?

Casey: I think it was a 2002 Fleer with my son, Andrew. He was 11 months old. It was a family card. I'll probably give the card to my two kids.

George Castle is a writer for Redline Editorial, Inc.