UFC boss Dana White has some of the most expensive trading cards in the world, and his collection is worth over a whopping $1 ...

Mike Trout is card #275 in the set, and there are five different variations of his base card. The one that stands out the most is the batboy variation, which features the Angels Batboy at the time on ...

This article was originally published on www.si.com/collectibles as 4 Key Cards From 1991 Upper Deck Baseball.