According to the back of the Mo Vaughn card in the above scan, "Gronk" is the name given to power hitters by former Twins and Dodgers shortstop Greg Gagne. How anyone else heard about that and thought that it should be the subject of an insert set, I have no idea. He explains that power hitters look like lumbering cavemen with big sticks. Credit for originality I guess. There are also cards of Tim Wakefield, Travis Shaw, and Daniel Bard in there. I guess the best part of the package is the term "Gronk". I might just start using that, although I doubt it is still a favored term by anyone.