Michael Sam, #52 of the Missouri Tigers, on October 12, 2013 in Athens, Georgia. Kevin C. Cox/Getty Images - 

The NFL is about to get its first openly gay player: University of Missouri defensive lineman Michael Sam revealed on Sunday that he is gay, just months before the draft. The announcement may end up hurting Sam's earnings potential – but by how much? 

Scott Rosner, sports business professor at the Wharton School of the University of Pennsylvania, joins Morning Report host David Brancaccio to break down the numbers.

Follow David Brancaccio at @DavidBrancaccio