The Cowboys waived Roberson on Tuesday, Nick Eatman of DallasCowboys.com reports.
The rookie UDFA out of Wake Forest ended up being with Dallas for just a few months. Now, assuming another team doesn't claim Roberson during the current waiver period, he'll become an unrestricted free agent. In the meantime, his absence will open up additional opportunities for Dennis Houston, KaVontae Turpin, Brandon Smith and others.