Longtime New York Yankees catcher Jorge Posada put an end to his 17-year MLB career on January 24 with an emotional speech. When tears escaped his eyes, though, he violated an ancient adage—"there's no crying in baseball."
Not only were Posada's waterworks justified, but I believe that similar displays are permissible in several other baseball-related scenarios.
Those who consider crying a sign of weakness are mistaken. It is an act that reveals humanity and MLB players are not immune.