Don Mattingly out as Marlins manager - Fish Stripes
Don Mattingly Reinstates No Facial Hair Policy for Marlins
New York Yankees appearance policy - Wikipedia
Long season tests Miami Marlins rookies Chisholm, Rogers
Derek Jeter: Marlins can have 'well-groomed' facial hair
San Diego Facial Hair Club
Detroit Tigers: Long Live the Beard
Previously on MLB - A newbie's guide to watching baseball in 2020 - ESPN
Don_Mattingly
Don Mattingly to return Friday from COVID-19 absence
The Marlins changed their dumb facial hair policy, so players can have beards now
Don Mattingly enforces no-facial-hair policy for Marlins - The Washington Post
Miami Marlins' New Manager Outlaws Facial Hair On His Players - Newsy
Miami Marlins' New Manager Outlaws Facial Hair On His Players - Newsy