No long hair either.This is great one, used to be really into the baseball, around the time New York Yankess were amazing, also when Oakland A"s had that Moneyball season, I never missed it, and I didnt know this until recently.
If you play for the Yankees your not allowed to grow a beard.
Owner George Steinbrenner banned it in 1973, a rule they still have in place today
When they signed Gerrit Cole a couple years ago to a massive contract, the first order of business was the haircut and shave