Don Mattingly won't be back as Miami Marlins manager next season
Miami Marlins' New Manager Outlaws Facial Hair On His Players
Super 'Stache Bros: The Monumental Return of Hair to Baseball
Don Mattingly has relaxed the Marlins' facial hair policy
Yankees grooming policy origins
Close shave for Marlins as team bans facial hair – Sun Sentinel
To shave or not shave? That's Padres' question
Marlins, Mattingly adopt no facial hair policy
Derek Jeter will allow Marlins players to have 'well-groomed
Don Mattingly on his way out as Marlins manager?
Facial Hair Rule Now in Effect for Miami Marlins: Don Mattingly