This brings back so many memories from the 80s/early 90s. "Rated Rookie" was a label baseball card manufacturer Donruss slapped on baseball cards to denote top rookies prospects. Now you can get it on a t-shirt.
I love this! I used to collect baseball cards back in the day, and the Rated Rookies from Donruss were always worth a lot. I remember having the Ken Griffey Jr. one.