Yankees will soon wear black uniforms
MLB Players' Weekend 2019: Best jersey nicknames for every baseball team
2019 MLB Players' Weekend nicknames
M.L.B. Goes Black and White in Search of Green - The New York Times
MLB's nickname gimmick won't solve baseball's mounting age issues, MLB
MLB Players' Weekend uniforms are a big hit or a big flop depending on who you talk to (Poll)
Players Weekend - Wikipedia
Washington Nationals' player nicknames for MLB's Players Weekend later this month - Federal Baseball
Memo: MLB players can use nicknames on back of jersey, wear bright-colored shoes during 'Players Weekend