Minor leaguers ask MLB to voluntarily recognize union with majority player support
Minor league baseball players form union
MLBPA to Campaign to Unionize Minor League Players – NBC 6 South Florida
MLB players' association trying to unionize minor leaguers
What being in the MLB players' union will mean to minor-leaguers
Here's Why An MLB Minor Leaguers Union Matters
For the first time in history, minor league baseball players have a union
Minor-league baseball players unionize: Minor leaguers officially join MLBPA after authorization
Cubs MLPBA rep Ian Happ weighs in on push to unionize minor-leaguers - Chicago Sun-Times
MLB Players Association trying to unionize minor leaguers
Oakland A's News: MLBPA starting efforts to unionize minor leagues - Athletics Nation
M.L.B. Will Voluntarily Recognize Minor League Union - The New York Times
Westbrook Sports Classics
MLB Players Association starts campaign to unionize Minor League Baseball players