Why Do Yankees Players Have to Shave Their Faces? A Look at the Policy
The Yankees' appearance policy and why it should stay, Bronx Pinstripes
Why are MLB players shaving off their mustaches in the middle of games?
Andrew Cashner's beard: Boston Red Sox's newest pitcher put beard clause in contract, hasn't shaved since 2016
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No Facial Hair?- What is the Reason Behind This Odd New York Yankees Rule? - EssentiallySports
New York Yankees appearance policy - Wikipedia
$324 Million Man Gerrit Cole Says He'll Shave His Beard For The Yankees Due To Their Weird Policy - BroBible
From Oscar Gamble to Lou Piniella, the origins of the Yankees' war on long hair - The Athletic
Andrew McCutchen shaves after being traded to the Yankees
The story behind the Yankees' facial hair policy - Pinstripe Alley
Aaron Judge Thankful Yankees Protecting Privacy By Keeping Name Off Back Of Jersey : r/baseball
From Oscar Gamble to Lou Piniella, the origins of the Yankees' war on long hair - The Athletic