Here he celebrates the heyday of Birmingham's minor league team, the Barons.
A former baseball player sues for a minor league living wage.
It's in their interest to sell one to every municipality with an outsize DHS grant and a minor league baseball stadium.
Not of the highest quality or type; second-rate: This author exhibits a minor-league talent/ With my 50-word vocabulary I'd be a busher in that company, having had no minor league experience
[1926+; the original baseball use is found by 1884]