To make room for Hamilton the Cowboys cut guard David Arkin, a fourth-round draft pick in 2011, who did not see an offensive snap in two seasons. If he clears waivers, he could be brought back to the practice squad.
This season, Arkin was inactive for six games and did not play in the only game that he was active for.
The Cowboys do not believe Wilcox, who was hurt in Thursday’s practice, has a long-term injury. The hope is that he could return next week against the Minnesota Vikings on Nov. 3. Wilcox has started the past five games but will be replaced by another rookie, Jeff Heath, on Sunday.
Hamilton has spent the year on the Cowboys’ practice squad after he was among their final cuts.