On Hot Stove, Bob Costas remembers Sy Berger, is pretty sure he could win all your baseball cards

Last weekend, Sy Berger, the father of Topps baseball cards as we know them, passed away at the age of 91. On Tuesday, Bob Costas called into MLB Network's "Hot Stove" to reminisce about the man he called "a citizen of the game."

Bob Costas also wants everyone to know he could beat us in a game of "knock-a-leana" any day. Want to know what "knock-a-leana" is? For those of us who missed the golden age of baseball cards, an explanation is only one click away. Just tap the play button above, and get practicing. You've got a lot of baseball cards to win from little Bobby up there. 

Just make sure you tell him there are no do-overs.