Upper Deck issued baseball cards for 22 seasons, from their groundbreaking 1989 set to their unlicensed 2010 set. There was one design feature that was a part of every single set...
....except for 2003.
Do you know what the 2003 cards were missing?
Well, you won't be able to figure it out by looking at the front of the card. Now look at the back.
Now have you figured it out?
The 2003 set was the only one of Upper Deck's twenty-two that did not include a picture of the player on the back of the card.
So why the change? Did Upper Deck think they had to change things just to change them? I suppose no one could come up with a decent answer, because the picture on the back returned in 2004.