Jay Z might wanna stick to pumping up athletes through his music, 'cause his in-person pep talks don't seem to be as effective ... just ask Dez Bryant.
Prior to Bryant's game against the Giants, Hov took a second to hype his Roc Nation athlete for Sunday Night Football ... which sounds like a great idea, right?
Only problem is, Bryant was held to just 1 catch for 10 yards the whole night ... AND he fumbled the only catch he had.
But hey, Dez is a stud and these games happen. Next time just stick to "The Black Album."
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