Supporters say a union would provide athletes a vehicle to lobby for financial security and improved safety, noting that players are left out of the billions generated through college athletics. They contend scholarships sometimes don't even cover livings expenses for a full year.
A decision by the NLRB could come soon after the testimony concludes.
For now, the push is to unionize athletes at private schools, like Northwestern. Public universities, which are subject to different regulations, could follow later.
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