MLB announces modernization of Minor League system - World Baseball Softball Confederation

MLB clubs will have four affiliates for a total of 120 Minor League teams, all holding a Professional Development League (PDL) license.

MLB, Atlantic League will experiment new rule changes - World

Minor League Baseball teams 'on the brink of financial catastrophe

World Baseball Softball Confederation

World Baseball Softball Confederation - Wikipedia

MLB makes official plans to downsize minor league system - Los

WBSC launches Mini Baseball Softball global initiative to help

Minor League Baseball logo refresh incorporates connection to MLB

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World Baseball Softball Confederation

Minor League Baseballs Collecting and researching official minor

MLB announces modernization of Minor League system - World

MLBPA Solidifies First MiLB CBA

MLB Players Association takes 'historic' step toward unionizing

Minor league baseball teams sue MLB over antitrust exemption