Demands grow for MLB to recognize minor league players union
Hit the go button': The six years that made baseball's minor league union - The Athletic
Inside the Minor League Baseball Unionization Push - Global Sport Matters
MLB Players Association takes 'historic' step toward unionizing minor-league baseball players
Edge of Sports: Justice for Minor League Baseball Players
Demands grow for MLB to recognize minor league players union
MLB playoffs: former minor league teammates compete for NL pennant
Bipartisan state coalition backs challenge to MLB's antitrust immunity
Minor League Baseball Union: How a Group of Players Sprung a Union on MLB - Sports Illustrated
MLB prepared to voluntarily recognize minor league union - The San Diego Union-Tribune
Demands grow for MLB to recognize minor league players union