We separated out those whose service time (at least six seasons) passes the free agent threshold from those whose service time (three to five years) qualifies them for salary arbitration but not free agency.

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Major League Baseball has enjoyed an antitrust exemption since the 1920s, but the players have successfully fought off attempts to curtail their earnings through a strong union that's gained free agency and salary arbitration while keeping a salary cap at arm's length.

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Moving up to the next service class (post arbitration, pre-free agent), there are 14 pitchers in the AL that collectively average 104 innings and a 4.02 ERA, allowing 8.8 hits and 2.9 walks per nine.

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Players need three years in the majors before they can demand arbitration of salary disputes, and six years before they can declare themselves free agents.

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During the 2008 election, both Obama and Clinton promised to revise the North American Free Trade Agreement (NAFTA) to ensure that laws protecting workers would not be subject to arbitration.

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