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Roberson signed with the Bills' practice squad Wednesday, Aaron Wilson of ProFootballNetwork.com reports.
Roberson will join Buffalo after the team was given a practice squad exemption for Tavon Austin, who will no longer count against this unit's 16-man limit. The undrafted wideout previously spent time with Dallas' and Pittsburgh's practice squads, and he'll have a chance to make his NFL debut as a potential game-day elevation this season.
