Athletes grow a lot during the span of their careers, especially physically, which is no more apparent than in their rookie cards.
These cards have a way of making grown men look like teenagers, and they often depict athletes in the most unflattering of ways.
Looking at these, you would never think these men would become stars, but they did. Some even became superstars.
I've compiled 20 funny superstar rookie cards for your entertainment. Let's take a look...