MLB hopes the U.S. government will help it to open the door to sign Cuban players .
Cuban baseball defectors joined a Major League Baseball goodwill tour offering clinics for children in an unprecedented act of baseball diplomacy .
Major League Baseball hopes the U.S. government will help Major League Baseball to open the door to sign Cuban players .
Cuban baseball defectors joined a Major League Baseball goodwill tour offering clinics for children in an unprecedented act of baseball diplomacy .