Before his famous 1989 Upper Deck rookie card, Ken Griffey Jr. appeared on several minor league cards during his prospect years. Some of these early Griffey cards now sell for thousands.

The recent surge in sports card prices has extended to the hobby's most beloved players. There is no player currently more beloved in the hobby than Ken Griffey Jr. While his famous 1989 Upper Deck ...

The Seattle Mariners made it to MLB’s postseason in 2025, which, if you aren’t a baseball fan, is not a thing that regularly happens. They had last made it to the playoffs in 2022, which was the first ...