If you play the game for long enough, you go through phases. Just look at Barry Bonds at the start of his career and compare it to the finish. Lots of change, right?

The same can be said for players with nothing but facial hair to aid their development, and at no point did facial hair in baseball peak more than the 1970s. 

Here are 20 iconic 1970s players smack dab in their most 1970s looks.